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Choose the correct statement(s) among th...

Choose the correct statement(s) among the following.

A

Average molecular speed of gases omcreases wotj decrease in fraction of molecules moving slowly.

B

Rate of effusion of gases increases with increase in collision frequency at constant volume.

C

Rate of effusion is inversely proportional to molecular weight of gas.

D

Mean free path does change with change in temperature at constant pressure.

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