Does Heating a Pop Can Increase Internal Pressure?

Click For Summary
SUMMARY

Heating a pop can with the tab removed increases the internal pressure due to the ideal gas law, which states that pressure is directly proportional to temperature. As the temperature of the air inside the can rises, the kinetic energy of the air molecules increases, resulting in higher pressure inside the can compared to the outside environment. If the external temperature remains cooler, the pressure outside the can will be lower, leading to a pressure differential that causes air to flow from outside to inside if the can is open.

PREREQUISITES
  • Understanding of the ideal gas law
  • Basic principles of thermodynamics
  • Knowledge of pressure and temperature relationships
  • Familiarity with gas behavior in open systems
NEXT STEPS
  • Research the ideal gas law and its applications
  • Study thermodynamic principles related to pressure and temperature
  • Explore the behavior of gases in open versus closed systems
  • Investigate real-world applications of pressure differentials in fluid dynamics
USEFUL FOR

Students studying physics, educators teaching thermodynamics, and anyone interested in the principles of gas behavior and pressure dynamics.

p.ella
Messages
41
Reaction score
0
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
Please help asap, need it for homework (8

 
Physics news on Phys.org
p.ella said:
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
Please help asap, need it for homework (8
...
If the pressure outside is greater than the pressure inside, wouldn't air flow from outside to inside, since the can is open ?
 
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?
 

Similar threads

Solving an Air Pressure Question: Who Is Right?
  • · Replies 5 ·
Replies
5
Views
2K
How does a difference in air pressure induce a force?
  • · Replies 15 ·
Replies
15
Views
2K
Why Does Surface Tension Allow Bubbles to Form Despite External Pressure?
  • · Replies 3 ·
Replies
3
Views
1K
Adiabatic Expansion of Pressurized Air in a Piston-Cylinder Setup
  • · Replies 8 ·
Replies
8
Views
2K
Mercury barometer with a small amount of air
  • · Replies 7 ·
Replies
7
Views
2K
Question about transient temperature and pressure for air flowing into a box
  • · Replies 1 ·
Replies
1
Views
1K
Effect of temperature on surface tension
  • · Replies 2 ·
Replies
2
Views
2K
External pressure when internal pressure is constant
  • · Replies 2 ·
Replies
2
Views
2K
Solving for final temp of adiabatic ideal air expansion
  • · Replies 12 ·
Replies
12
Views
3K
Calculating air pressure from altitude, RH and temperature?
  • · Replies 3 ·
Replies
3
Views
4K