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A vessel contains a mixture of different types of gases.Which of the following

A vessel contains a mixture of different types of gases.Which of the following statement is correct

Options

(a) On the average the heavier molecules have higher translation energy
(b) The average speed of different molecules is the same
(c) The average translation energy of different types of molecules is the same
(d) On the average the heavier molecules have higher speed

Correct Answer:

The average translation energy of different types of molecules is the same

Explanation:

E = (3 / 2) kT ⇒ E ∝ T
Thus, the average translational energy of different types of molecules is the same because it depends only on temperature.

PB2007
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