Boil a pan of water until the water disappears. Where does it go?

[Sunshine]

Where did the water come from in the first place Deany?

Duh, the ocean?

NOAA Education Resources: Weather Systems and Patterns Collection

Duh, humidity is not snow. Humidity is wet and snow is dry.

Snow is not 'dry.'

Once on the ground, snow can be categorized as powdery when fluffy, granular when it begins the cycle of melting and refreezing, and crud or eventually ice once it packs down into a dense drift after multiple melting and refreezing cycles. When powdering, snow drifts with the wind, sometimes to the depth of several metres. After attaching to hillsides, blown snow can evolve into a snow slab, which is an avalanche hazard on steep slopes.

Types of snow - Wikipedia, the free encyclopedia

Snow is frozen ........ta...da.....WATER!

 

[Sunshine]

"Crickets."

 

[edthecynic]

Evaporation in the atmosphere is a crucial step in the water cycle. Water on Earth's surface will evaporate into the atmosphere as energy is absorbed by liquid water. Water molecules that exist in the liquid phase are free-flowing and in no particular fixed position. Once energy is added to water by heat from the sun, the bonds between the water molecules gain kinetic energy, or energy in motion. Once the gas, called water vapor or humidity, reaches the atmosphere, various types of clouds can form.

Evaporation - Evaporation Definition - Water Cycle

Once that water vapor is in the air and the vapor cools, it comes back down to earth as "rain". That stuff you need umbrellas for. If the temperature is too cold, it comes down as "snow".

Years ago, on the USMB I explained that same exact thing and one USMB member told me they weren't interested in "wild liberal theories".

To right wingers, if there is suddenly so much snow, then they believe the earth is getting colder. But think about the boiling water. Heat the water and where does it go? You can watch it turn to steam until eventually, it's gone. We can do that on our stove so we know it's true.

Do that in a small room, and the atmosphere becomes very moist. We call that a "steam room" and they are always "hot". Suddenly freeze that water in the atmosphere and it will turn to snow. Even in that small room.

But there has to be a lot of moisture in the air to make a lot of snow. And that means that somewhere, a lot of water was "heated up" which produced massive amounts of humidity. See? To get massive amounts of either rain or snow, you need massive amounts of humidity. Do you understand how that works? To get massive amounts of humidity, you need massive amounts of "warming". Is it clear? Do you see how it's all connected?

And then the snow cools the atmosphere

Funny how things work out in nature

When water at 0C turns into snow at 0C, it releases heat!

Funny how things work out in nature

 

[BlackSand]

Wow ... Water turns to vapor because of warming and somehow subsequently turns into snow and ice without cooling.

.

 

[Sunshine]

Evaporation in the atmosphere is a crucial step in the water cycle. Water on Earth's surface will evaporate into the atmosphere as energy is absorbed by liquid water. Water molecules that exist in the liquid phase are free-flowing and in no particular fixed position. Once energy is added to water by heat from the sun, the bonds between the water molecules gain kinetic energy, or energy in motion. Once the gas, called water vapor or humidity, reaches the atmosphere, various types of clouds can form.

Evaporation - Evaporation Definition - Water Cycle

Once that water vapor is in the air and the vapor cools, it comes back down to earth as "rain". That stuff you need umbrellas for. If the temperature is too cold, it comes down as "snow".

Years ago, on the USMB I explained that same exact thing and one USMB member told me they weren't interested in "wild liberal theories".

To right wingers, if there is suddenly so much snow, then they believe the earth is getting colder. But think about the boiling water. Heat the water and where does it go? You can watch it turn to steam until eventually, it's gone. We can do that on our stove so we know it's true.

Do that in a small room, and the atmosphere becomes very moist. We call that a "steam room" and they are always "hot". Suddenly freeze that water in the atmosphere and it will turn to snow. Even in that small room.

But there has to be a lot of moisture in the air to make a lot of snow. And that means that somewhere, a lot of water was "heated up" which produced massive amounts of humidity. See? To get massive amounts of either rain or snow, you need massive amounts of humidity. Do you understand how that works? To get massive amounts of humidity, you need massive amounts of "warming". Is it clear? Do you see how it's all connected?

And then the snow cools the atmosphere

Funny how things work out in nature

When water at 0C turns into snow at 0C, it releases heat!

Funny how things work out in nature

Only if you are using a snow making machine:

The science of snowmaking can be quite complex. For the majority of us, however, a simple explanation of how the different parts of a snowmaker act will suffice. Snowmaking in its simplest form is the act of turning water into small ice crystals (snow). In order to make snow from your home water supply (at about 50°F), it must be cooled very rapidly. Four things come into play to make this happen: ambient temperatures, evaporation, surface area, super cooling.
Ambient Temperature
First it must be cold outside. Even when the outdoor temperature is below freezing (32°F) snow quality can be poor or slushy. This is because much of the water is not staying or even turning into the frozen state. If you refer to our snowmaking weather chart, you will see what the ideal temperatures are for snow making.
Evaporation
The second factor is heat loss through evaporation. As some of the water evaporates from the surface of the drop a small amount of heat is removed from the drop itself. Try putting some rubbing alcohol on your arm. As it evaporates you will experience this cooling effect. Your body uses this process of evaporation to cool itself, we call it sweating. When the air is humid, there is already a lot of moisture in the air. Your sweat is less readily absorbed into the air and is unable to evaporate from your skin removing the heat with it. The same premise happens in snowmaking. When there is high humidity, the water droplet’s surface is not able to evaporate a small amount of water and remove some of the heat. Therefore, in snowmaking we must refer to the “Wet Bulb Temperature”. This is a measure of the ambient temperature that takes into account the cooling effect the humidity in the air allows for.
Surface Area
The third way we cool the water is by increasing the surface area of the drop. By increasing the surface area, we expose as much of the water to the cold as possible. The smaller we make these drops, the greater the surface area to volume ratio. We achieve the proper drop size and spray pattern through our highly specialized nozzles. And yes, the nozzles do matter! In order to optimize the size of the droplets, the distance between the drops, and the water volume flowing though the opening while employing high pressures to achieve proper distance and hang time, we engineered nozzles specifically for snowmaking.
Super Cooling
Finally we need to look at super cooling. When a compressed gas (in this case air) is allowed to rapidly expand, there is a decrease in temperature. This is known as the Joule-Thomson Effect. The conditions at the air nozzle are such that the mist coming from the nucleation nozzle is able to immediately freeze. These tiny ice crystals are then drafted into the larger upper mists which seed and snap the pre-cooled water droplets into a frozen state. The result is snow that then falls out of the mist.

https://www.snowathome.com/snowmaking_science.php

But not in nature.

IMPORTANT: the processes of evaporation and condensation take 7.5 times as much energy as melting or freezing. This is why evaporational cooling will cool the air much more than the melting of snow. For example, let's say snow is falling and the outside temperature is 40 degrees Fahrenheit. As the snow falls into the warmer air it will begin to melt and some of it will be evaporating. The evaporation from the wet snow will cool the air 7.5 times as much as the melting of the snow. If the temperature drops from 40 to 32 degrees as the snow falls, about 7 of those 8 degrees of cooling is caused by the evaporation process. Melting cools the air also, just not near as much as evaporation does. When water undergoes a phase change (a change from solid, liquid or gas to another phase) the temperature of the H20 stays at the same temperature. Why? Energy is being used to either weaken the hydrogen bonds between H20 molecules or energy is being taken away from the H20 which tightens the hydrogen bonds. When ice melts, energy is being taken from the environment and absorbed into the ice to loosen the hydrogen bonds. The energy taken to loosen the hydrogen bonds causes the surrounding air to cool (energy is taken away from the environment: this is latent heat absorption). The temperature of the melting ice however stays the same until all the ice is melted. All hydrogen bonds must be broken from the solid state before energy can be used to increase the H20's temperature.

5. Dry climates tend to have a larger diurnal range in temperature than moist climates. The primary reason is because of latent heat. In a dry climate, evaporational cooling is at a minimum and there is little water vapor to trap longwave radiation at night. Therefore, in a dry climate the highs will be higher and the lows lower as compared to a moist climate at the same altitude and latitude (all else being equal).

UNDERSTANDING LATENT HEAT

Anyway, my snow machine has been on the fritz for some time.

 

[Luddly Neddite]

Thankfully only 6% of rdean type of people are into science. ...

I'm not a Republican.

Only Six Percent Of Scientists Are Republicans: Pew Poll

And apparently none of the rw's on this board.

Notice that all the rw posts are ignorant of basic science. Not surprising that not one of them understands the FACT that our planet is a closed system and what that means to our future.

 

[Sunshine]

Thankfully only 6% of rdean type of people are into science. ...

I'm not a Republican.

Only Six Percent Of Scientists Are Republicans: Pew Poll

And apparently none of the rw's on this board.

Notice that all the rw posts are ignorant of basic science. Not surprising that not one of them understands the FACT that our planet is a closed system and what that means to our future.

I take it you are now caught up on the thread and realize that rdoofus is just plain wrong. As per usual.

 

[mamooth]

You reject computer enhancement of the Sidescan sonar?

It's not a computer enhancement. It's an imagination-based drawing which is only loosely based on the sonar image. There are no Mayan ruins two thousand feet down in the ocean near Cuba. There's just a big rock formation.

Your "sunken city" was "discovered" in 2001. A voyage went back in 2004, and found ... well, they had "technical difficulties". Convenient. They announced another voyage in 2005, but it never materialized. Nobody of note has shown any interest at all in looking at it again. Because it's just some big rocks.

It's a lot like the Face On Mars. On closer examination, there was nothing there. Certain cultists, however, still swear NASA's better data was faked to cover up the truth about The Face. Likewise, certain other cultists think a Mayan city 2,000 feet below the ocean somehow proves their cult's theories, so they cling to the fable.

 

[edthecynic]

And then the snow cools the atmosphere

Funny how things work out in nature

When water at 0C turns into snow at 0C, it releases heat!

Funny how things work out in nature

Only if you are using a snow making machine:



https://www.snowathome.com/snowmaking_science.php

But not in nature.

IMPORTANT: the processes of evaporation and condensation take 7.5 times as much energy as melting or freezing. This is why evaporational cooling will cool the air much more than the melting of snow. For example, let's say snow is falling and the outside temperature is 40 degrees Fahrenheit. As the snow falls into the warmer air it will begin to melt and some of it will be evaporating. The evaporation from the wet snow will cool the air 7.5 times as much as the melting of the snow. If the temperature drops from 40 to 32 degrees as the snow falls, about 7 of those 8 degrees of cooling is caused by the evaporation process. Melting cools the air also, just not near as much as evaporation does. When water undergoes a phase change (a change from solid, liquid or gas to another phase) the temperature of the H20 stays at the same temperature. Why? Energy is being used to either weaken the hydrogen bonds between H20 molecules or energy is being taken away from the H20 which tightens the hydrogen bonds. When ice melts, energy is being taken from the environment and absorbed into the ice to loosen the hydrogen bonds. The energy taken to loosen the hydrogen bonds causes the surrounding air to cool (energy is taken away from the environment: this is latent heat absorption). The temperature of the melting ice however stays the same until all the ice is melted. All hydrogen bonds must be broken from the solid state before energy can be used to increase the H20's temperature.

5. Dry climates tend to have a larger diurnal range in temperature than moist climates. The primary reason is because of latent heat. In a dry climate, evaporational cooling is at a minimum and there is little water vapor to trap longwave radiation at night. Therefore, in a dry climate the highs will be higher and the lows lower as compared to a moist climate at the same altitude and latitude (all else being equal).

UNDERSTANDING LATENT HEAT

Anyway, my snow machine has been on the fritz for some time.

In nature, when water at 0C turns into snow at 0C, heat energy is RELEASED into the atmosphere. When water turns into snow it is not melting, it is crystalizing so heat moves in the opposite direction. When 1 g of water at 0 ºC freezes to give 1 g of ice at 0 ºC, 334 Joules of heat will be released to the surroundings.

 

[Sunshine]

When water at 0C turns into snow at 0C, it releases heat!

Funny how things work out in nature

Only if you are using a snow making machine:



https://www.snowathome.com/snowmaking_science.php

But not in nature.

5. Dry climates tend to have a larger diurnal range in temperature than moist climates. The primary reason is because of latent heat. In a dry climate, evaporational cooling is at a minimum and there is little water vapor to trap longwave radiation at night. Therefore, in a dry climate the highs will be higher and the lows lower as compared to a moist climate at the same altitude and latitude (all else being equal).

UNDERSTANDING LATENT HEAT

Anyway, my snow machine has been on the fritz for some time.

In nature, when water at 0C turns into snow at 0C, heat energy is RELEASED into the atmosphere. When water turns into snow it is not melting, it is crystalizing so heat moves in the opposite direction. When 1 g of water at 0 ºC freezes to give 1 g of ice at 0 ºC, 334 Joules of heat will be released to the surroundings.

Link?

 

[edthecynic]

Only if you are using a snow making machine:



https://www.snowathome.com/snowmaking_science.php

But not in nature.


UNDERSTANDING LATENT HEAT

Anyway, my snow machine has been on the fritz for some time.

In nature, when water at 0C turns into snow at 0C, heat energy is RELEASED into the atmosphere. When water turns into snow it is not melting, it is crystalizing so heat moves in the opposite direction. When 1 g of water at 0 ºC freezes to give 1 g of ice at 0 ºC, 334 Joules of heat will be released to the surroundings.

Link?

Your wish is my command.

Heat of Fusion

For water at its normal freezing point of 0 ºC, the specific heat of Fusion is 334 J g-1. This means that to convert 1 g of ice at 0 ºC to 1 g of water at 0 ºC, 334 J of heat must be absorbed by the water. Conversely, when 1 g of water at 0 ºC freezes to give 1 g of ice at 0 ºC, 334 J of heat will be released to the surroundings.

 

[Pop23]

Evaporation in the atmosphere is a crucial step in the water cycle. Water on Earth's surface will evaporate into the atmosphere as energy is absorbed by liquid water. Water molecules that exist in the liquid phase are free-flowing and in no particular fixed position. Once energy is added to water by heat from the sun, the bonds between the water molecules gain kinetic energy, or energy in motion. Once the gas, called water vapor or humidity, reaches the atmosphere, various types of clouds can form.

Evaporation - Evaporation Definition - Water Cycle

Once that water vapor is in the air and the vapor cools, it comes back down to earth as "rain". That stuff you need umbrellas for. If the temperature is too cold, it comes down as "snow".

Years ago, on the USMB I explained that same exact thing and one USMB member told me they weren't interested in "wild liberal theories".

To right wingers, if there is suddenly so much snow, then they believe the earth is getting colder. But think about the boiling water. Heat the water and where does it go? You can watch it turn to steam until eventually, it's gone. We can do that on our stove so we know it's true.

Do that in a small room, and the atmosphere becomes very moist. We call that a "steam room" and they are always "hot". Suddenly freeze that water in the atmosphere and it will turn to snow. Even in that small room.

But there has to be a lot of moisture in the air to make a lot of snow. And that means that somewhere, a lot of water was "heated up" which produced massive amounts of humidity. See? To get massive amounts of either rain or snow, you need massive amounts of humidity. Do you understand how that works? To get massive amounts of humidity, you need massive amounts of "warming". Is it clear? Do you see how it's all connected?

And then the snow cools the atmosphere

Funny how things work out in nature

When water at 0C turns into snow at 0C, it releases heat!

Funny how things work out in nature

I just burned my hands on a pile of snow. You guys are too much!

 

[Sunshine]

In nature, when water at 0C turns into snow at 0C, heat energy is RELEASED into the atmosphere. When water turns into snow it is not melting, it is crystalizing so heat moves in the opposite direction. When 1 g of water at 0 ºC freezes to give 1 g of ice at 0 ºC, 334 Joules of heat will be released to the surroundings.

Link?

Your wish is my command.

Heat of Fusion

For water at its normal freezing point of 0 ºC, the specific heat of Fusion is 334 J g-1. This means that to convert 1 g of ice at 0 ºC to 1 g of water at 0 ºC, 334 J of heat must be absorbed by the water. Conversely, when 1 g of water at 0 ºC freezes to give 1 g of ice at 0 ºC, 334 J of heat will be released to the surroundings.

Perhaps you should have read your own link. From your link:

Note- The Heat of Fusion equation is used only at the melting/freezing transition, where the temperature remains the same only and that is why there is no temperature change (DT) in this formula. It stays at 0 Celsius for water.

Saying that snow forming in the atmosphere heats the atmosphere is dishonest.

 

[jon_berzerk]

energy always flows from a warmer object toward a colder object

 

[edthecynic]

Link?

Your wish is my command.

Heat of Fusion

For water at its normal freezing point of 0 ºC, the specific heat of Fusion is 334 J g-1. This means that to convert 1 g of ice at 0 ºC to 1 g of water at 0 ºC, 334 J of heat must be absorbed by the water. Conversely, when 1 g of water at 0 ºC freezes to give 1 g of ice at 0 ºC, 334 J of heat will be released to the surroundings.

Perhaps you should have read your own link. From your link:

Note- The Heat of Fusion equation is used only at the melting/freezing transition, where the temperature remains the same only and that is why there is no temperature change (DT) in this formula. It stays at 0 Celsius for water.

Saying that snow forming in the atmosphere heats the atmosphere is dishonest.

Perhaps you should have read a bit more carefully!

 

[edthecynic]

And then the snow cools the atmosphere

Funny how things work out in nature

When water at 0C turns into snow at 0C, it releases heat!

Funny how things work out in nature

I just burned my hands on a pile of snow. You guys are too much!

I always love it when know-it-alls try to teach physics to a physicist!

 

[Sunshine]

Your wish is my command.

Heat of Fusion

For water at its normal freezing point of 0 ºC, the specific heat of Fusion is 334 J g-1. This means that to convert 1 g of ice at 0 ºC to 1 g of water at 0 ºC, 334 J of heat must be absorbed by the water. Conversely, when 1 g of water at 0 ºC freezes to give 1 g of ice at 0 ºC, 334 J of heat will be released to the surroundings.

Perhaps you should have read your own link. From your link:

Note- The Heat of Fusion equation is used only at the melting/freezing transition, where the temperature remains the same only and that is why there is no temperature change (DT) in this formula. It stays at 0 Celsius for water.

Saying that snow forming in the atmosphere heats the atmosphere is dishonest.

Perhaps you should have read a bit more carefully!

Right. That's why the upper atmosphere is so damned hot the higher you go!

 

[edthecynic]

Perhaps you should have read your own link. From your link:

Saying that snow forming in the atmosphere heats the atmosphere is dishonest.

Perhaps you should have read a bit more carefully!

Right. That's why the upper atmosphere is so damned hot the higher you go!

How much snow is in the upper atmosphere?

I know you hate me, but would it kill you to admit I am correct about this one thing?

 

[BobPlumb]

It's similar to how the evaporation of water (sweat) cools the skin.

 

[Pop23]

I just put some champaign on ice. Within an hour it should start boiling