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41. Vessel A is filled with hydrogen while vessel B, whose volume is twice that of A, is filled with the same mass of oxygen at the same temperature. The ratio of the mean kinetic energies of hydrogen and oxygen is

(a)  16 : 1                                  (b)  1 : 8

(c)   8 : 1                                    (d)  1 : 1

Answer-d

(20)

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