How does temperature change air pressure?

Answer 1

An increase in temperature causes an increase in air pressure, everything else being equal.

The air molecules' kinetic energy increases with temperature, which also causes an increase in the molecules' average speed and momentum. Faster-moving molecules with greater momentum collide with other molecules with greater force, increasing pressure.

# T_1/T_2 = P_1/P_2#

Gay Lussac's Law states that there is a direct correlation between temperature (measured in degrees Kelvin) and pressure, meaning that as temperature rises, so does pressure.

But according to Charles' Law, temperature is directly proportional to volume, and Boyle's Law states that volume is indirectly proportional to pressure. This means that if an area of heated air can expand (volume increases), pressure will decrease. For example, the air above a parking lot made of black asphalt, which absorbs all solar radiation, and the air next to a lake, which reflects some solar radiation, can readily expand into the area above the lake because the air above it is not being heated.

The air pressure over the equator is higher than the air pressure over the poles because all of the air near the equator is heated and wants to expand.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer 2

Temperature change affects air pressure by altering the density of air molecules. When air is heated, its molecules gain energy and move more rapidly, causing them to spread out and occupy more space. This expansion decreases the air's density, resulting in lower air pressure. Conversely, when air cools, its molecules lose energy and move more slowly, causing them to contract and occupy less space. This contraction increases the air's density, leading to higher air pressure. Therefore, temperature and air pressure have an inverse relationship: as temperature increases, air pressure decreases, and vice versa.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

Not the question you need?

Drag image here or click to upload

Or press Ctrl + V to paste
Answer Background
HIX Tutor
Solve ANY homework problem with a smart AI
  • 98% accuracy study help
  • Covers math, physics, chemistry, biology, and more
  • Step-by-step, in-depth guides
  • Readily available 24/7