Which of the following statements is true?

• A

  Absolute zero degree temperature is not zero energy temperature

• B

  Two different gases at the same temperature pressure have equal root mean square velocities

• C

  The rms speed of the molecules of different ideal gases, maintained at the same temperature are the same

• D

  Given sample of I cc of hydrogen and lcc of oxygen both at N.T.P.; oxygen sample has a large number of molecules