Which of the following statement is not true?

Options

A. The ratio of mean speed to RMS speed is independent of temperature
B. The square of mean speed of molecules is equal to the mean squared speed at a certain temperature
C. Mean kinetic energy of the gas molecules at any given temperature is independent of the mean speed
D. The difference between RMS speed and mean speed at any temperature for different gases diminishes as larger and yet larger molar masses are considered

Answer

B