A vessel containing equal umber of molecules of two monoatomic gases a and b is at temperatures t. their masses are m and 4m respectively. the root mean squared

A vessel containing equal umber of molecules of two monoatomic gases A and B is at temperatures T. Their masses are m and 4m respectively. The root mean squared velocity of the atoms in the mixtureis 3 3 16kT 3 SkT (a) 4 m 8kT (b) 16kT (d) 5 m 5 7m