# Homework Help: Air pressure inside pop can when heated help asap please

1. Dec 19, 2011

### p.ella

Say there's a pop can with the tab already removed. If the can was heated up, would there be more pressure inside or outside the can? Please explain thoroughly and with a lot of detail.

My attempt: I'm guessing there will be more pressure outside but not sure why? I'm guessing b/c the temperature in the room is cooler and the pressure escapes from the can, please explain not really sure
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

2. Dec 19, 2011

### SammyS

Staff Emeritus
If the pressure outside is greater than the pressure inside, wouldn't air flow from outside to inside, since the can is open ?

3. Dec 19, 2011

### DaveC426913

Air outside and inside start at equilibrium.
Can gets heated up.
How fast does the temperature of the air volume inside of the can rise?
How fast does the temperature of the air volume outside of the can rise?

If one rises faster than the other, what happens to the air? Which way does it flow?