What happens to the gas pressure within a sealed gallon can when it is heated? How about when it is cooled?
2006-09-19 10:15:19 · 7 answers · asked by MegN 1 in Science & Mathematics ➔ Physics
heated - increases
cooled - decreases
pressure is directly proportional to temperature (PV=nRT)
2006-09-19 10:18:34 · answer #1 · answered by Anonymous · 0⤊ 0⤋
It increases when it is heated, and decreases when it cools. Since the can is sealed and is of defined volume, by the Ideal Gas Law pressure and temperature are directly proportional (temperature in Kelvin, pressure in atm or mm Hg).
2006-09-19 10:18:56 · answer #2 · answered by TheOnlyBeldin 7 · 0⤊ 0⤋
Hi. Heat expands the air, cooling contracts it. The rest is common sense.
2006-09-19 10:18:47 · answer #3 · answered by Cirric 7 · 0⤊ 0⤋
when heated pressure goes up; when cooled, pressure drops
2006-09-19 10:19:04 · answer #4 · answered by nirvana 2 · 0⤊ 0⤋
first why cant U heat it to identify it urself , the lets think later abt kool down.
2006-09-19 10:23:33 · answer #5 · answered by ACE 2 · 0⤊ 2⤋
Heat it, pressure goes up, natch. Duh.
Cool it, pressure goes down.
Don't you have anything better to do?
2006-09-19 13:10:19 · answer #6 · answered by Anonymous · 0⤊ 0⤋
i bursts when its warm --- i dont know when its cold...........
2006-09-19 10:22:49 · answer #7 · answered by kwing-kwang 3 · 0⤊ 1⤋