Wednesday, February 10, 2010

Is this statement true or false?

A balloon inflated in a freezer should deflate slightly when brought to room temp.Is this statement true or false?
False, It would inflate because the air would warm up and the molecules would collide with the balloon's surface more often, thus making it inflate.Is this statement true or false?
pV=nRT





p=pressure (in Pa)


V=Volume (in m^3)


n=number of moles


R=8.31


T= Temperature (in K)





Hypothetically (these are just easy numbers)


p=1


V=x


n=1


T=100


Therefore V=(8.31X100)/1=831





Because balloon is flexible, the volume increases more than the pressure.





If the temperature increases:


p=1


V=x


n=1


T=200


Therefore V=(8.31X200)/1=1662





Hence, volume increases.

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