Which of the following statement about Maxwell Boltzmann law of distribution of molecular speeds is//are correct ?.

Options

A. The fraction of molecules having speed between c and `(c +dc)` (regardles of direction) is given by `4pi((M)/(2piRT))^(3//2)c^(2) exp((-Mc^(2))/(2RT))dc` .
B. The average speed is the arithmetic mean of the differnet speeds of all the molecules present in a given sample of the gas .
C. The speed distribution curve becomes sharper and is more peaked at higher temperature as the average speed increases .
D. The speed distribution function is used to determine average molecular speeds .

Explanation

The increase in temperature flattens the peak .