Question

At temperature T, N molecules of gas A each having mass m and at the same temperature 2N molecules of gas B each having mass 2m are filled in a container. The mean square velocity of molecules of gas B is v2 and mean square of x component of velocity of molecules of gas A is w2 . The ratio of w2 /v2 is?

(A) 1

(B) 2

(C) 1/3

(D) 2/3

Answer 1

Correct option (D) 2/3

Explanation:

Since by the postulate of KTG that, molecules move in random motions.