A 2.50 L balloon is filled with helium gas at sea level, 1.00 atm and 32 degrees celsius. The balloon is released and it rises to an altitude of 30,000 ft. If the pressure at this altitude is 228 mm Hg and the temperature is -44 degrees celsius, what is the volume of the balloon?

Answer 1

Combined gas law:

P1V1/T1=P2V2/T2 temps in kelvins

Answer 2

3.74L