Kinetic Theory

If the rms velocity of a gas is v, then

Ideal gas insulated, heated by current through resistance , current for 5 min. Find change in internal energy.

Which of the following relation is correct? ( : root mean square velocity, : mean velocity and : most probable velocity)

If one mole of monoatomic gas ( ) is mixed with one mole diatomic gas ( ), the value of for the mixture is: