A hot air balloon is filled with 1.89x102 liters of air at 21 C. If atmospheric pressure does not change, how hot must the air become in order to increase the volume to 4.5x102 liters?

1 Answer
Sep 20, 2016

We use Charles' Law V2T2=V1T1. T2 will at least double T1.

Explanation:

Charles' Law states that a given quantity of gas has a volume directly proportional to the absolute temperature:

VT, else V=kT. Solving for k, V1T1=V2T2, and T2=V2V1×T1

T2=4.5×102L1.89×102L×294K = ??K