A spherical balloon of volume 4.00×103 cm3 contains helium at a press – InterviewSolution

1.	A spherical balloon of volume 4.00×103 cm3 contains helium at a pressure of 1.20×105 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?
Answer» A spherical balloon of volume $4.00 \times 10^{3} {c m}^{3}$ contains helium at a pressure of $1.20 \times 10^{5} P a$ . How many moles of helium are in the balloon, if the average kinetic energy of the helium atoms is $3.60 \times 10^{- 22} J$ ?

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