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1 vote

Examples of experiments replicating the idealized greenhouse model

What many refer to as the 'atmospheric greenhouse effect' is actually a conflation for the Kelvin-Helmholtz gravitationally-induced lapse rate. An actual greenhouse works primarily by blocking ...
Mr_Magoo's user avatar
1 vote
Accepted

Formula for air density given temperature, pressure, humidity

Use Pa, not hPa for pressure. This gives you a factor of 100 which takes you to the right answer.
DanDan0101's user avatar
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1 vote

When rain clouds are formed, does the entropy decrease?

Clouds are not closed objects, butt rather a part of a dynamic atmosphere, which is far from thermodynamic equilibrium (to which the Laws of thermodynamics/statistical physics apply.) In this sense, ...
Roger V.'s user avatar
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1 vote

When rain clouds are formed, does the entropy decrease?

The second law of thermodynamics says that the entropy of an isolated (or closed) system left to spontaneous evolution cannot decrease with time. A cloud is not an isolated system - it interacts with ...
gandalf61's user avatar
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-3 votes

Why doesn't the outer most atmosphere that touches spaces freeze?

This is a good question and the answers are truly good. I feel my brain cells deep diving in to these replies. I would like to put forward an answer with more simple logics, if I may. Temperature ...
PowerHouse3's user avatar
40 votes

Why doesn't the outer most atmosphere that touches spaces freeze?

Other answers have explained why gas at very low pressure won't freeze. What hasn't been mentioned is that the outermost atmosphere isn't cold. The coldest layer is around -100°C at 80km but the ...
Chris Thorpe's user avatar
23 votes

Why doesn't the outer most atmosphere that touches spaces freeze?

In the outer atmosphere the pressure is very low (and approaches zero when you go further and further away from the earth). So let us look how materials behave at low pressure. Here is a typical phase ...
Thomas Fritsch's user avatar
11 votes

Why doesn't the outer most atmosphere that touches spaces freeze?

The freezing temperature of the gases depends on the pressure (or rather the resublimation temperature, most gases won't have a liquid phase in between solid and gas at low pressure, helium is the ...
Sebastian Riese's user avatar
-1 votes

What is the relationship of sound volume to atmospheric pressure?

I have no way of knowing if what you just said is true or not. I approached this question regarding passages in books about the civil war, referring to the fact that occasionally an atmospheric ...
Col. Shameless's user avatar

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