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A spherical balloon of volume 4.06 103 cm3 contains helium at a pressure of 1.25 105 Pa. How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is 3.60 10-22 J
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A spherical balloon of volume 4.06 103 cm3 contains helium at a pressure of 1.25 105 Pa. How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is 3.60 10-22 J

User Jonathan Muller
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Use ideal gas equation PV=nRT
Convert vol to dm3 by /1000
1.125105*(4.06103/1000)=mol*8.31*temperature
Rearrange for moles
User Bluefog
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