A spherical balloon of volume V contains helium at a pressure P. How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is `vec(K)`?A. `(2PV)/vecKN_(A)`B. `3PV/KN_(A)`C. `5PV/3KN_(A)`D. `3PV/KN_(A)`

A spherical balloon of volume V contains helium at a pressure P. How m

1.	A spherical balloon of volume V contains helium at a pressure P. How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is `vec(K)`?A. `(2PV)/vecKN_(A)`B. `3PV/KN_(A)`C. `5PV/3KN_(A)`D. `3PV/KN_(A)`
Answer» Correct Answer - D `P=(2N)/(3V) bar(K)` From the kinetic theory account for pressure. `N = 3/2 (PV)/(barK)` `n = (N)/(N_A) = 3/2 (PV)/(bar(K)N_A)`.

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A spherical balloon of volume V contains helium at a pressure P. How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is `vec(K)`?A. `(2PV)/vecKN_(A)`B. `3PV/KN_(A)`C. `5PV/3KN_(A)`D. `3PV/KN_(A)`

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