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Discus: SAT/ACT Tests and Test Preparation: October 2003 Archive: AP CHEMISTRY PROBLEM
By Sid_Mathur (Sid_Mathur) on Tuesday, September 30, 2003 - 07:09 pm: Edit

A weather balloon is filled with 0.295 m^3 of helium on the ground at 18 degrees Celsius and 756 torr. What will the volume of the balloon be at an altitude of 10 km where the temperature is -48 degrees Celsius and the pressure is 0.14 atm?

ok this is what ive done so far:

V1=.295 m^3

T1=18+273=291 K
P1=756 x 1/760 = .9957 atm
P2=.14 atm

What do I do next?
All I know is P1V1/n1T1 = P2V2/n2T2

By Y17k (Y17k) on Wednesday, October 01, 2003 - 07:14 am: Edit

(.295 * .9957)/291 = (.14 * V)/225

Solve for V.

Sorry i dont have my calculator right now ><

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