Ideal Gas Law help with question please?

  • Thread starter Thread starter Dana A
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Dana A

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A weather balloon is inflated to a volume of 29.4 L at a pressure of 749 mmHg and a temperature of 23.7 C. The balloon rises in the atmosphere to an altitude, where the pressure is 360 mmHg and the temperature is -16.0 C.

Assuming the balloon can freely expand, calculate the volume of the balloon at this altitude.
 
I think you should just set the two equations equal to each other.

[p(i)*V(i)]/T(i)=[p(f)*V(f)]/T(f)... so, it should be something like this:

[749*29.4]/296.7 = [360*V]/257, where the temperatures are in K.

I think that should be right, whatever V(f) calculates out to be.
 
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