20. Which of the following statement 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 root mean square speed of the molecules of different ideal gases, maintained at the same temperature are the same

(d)  Given sample of 1 cc of hydrogen and 1 cc of oxygen both at NTP; oxygen sample has a large number of molecules

Answer-a

(9)