Q. Two ideal gases, one monoatomic and another diatomic, are having same pressure P, volume V and temperature T. Select the correct option

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A

The translational kinetic energy for monatomic gas is $\frac{3}{2} P V$ but for diatomic gas it is $\frac{5}{2} P V$ .

46%

B

The translational kinetic energy for both monatomic and diatomic gas will be same.

19%

C

Average velocity of each molecule of any type of gas will be proportional to $T^{5}$ , where $T$ is absolute temperature.

24%

D

Average energy for one molecule per degree of freedom for monatomic gas is $\frac{1}{2} k T$ but that for diatomic it is $2 \times \frac{1}{2} k T$ .

11%

Solution:

$E_{T r an s} = \frac{3}{2} P V$