One mole of a monoatomic gas and one mole of a diatomic gas are mixed in a vessel

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

One mole of a monoatomic gas

\left( \gamma = \frac{5}{3} \right)

and one mole of a diatomic gas

\left( \gamma = \frac{7}{5} \right)

are mixed in a vessel. The value of

\gamma

for the mixture is : (1) 1.5 (2) 3.06 (3) 1.53 (4) 1.43