The average distance travelled by a molecule of gas at temperature T between two successive collisions is called its mean free path which can be expressed by (P is pressure of gas, K is Boltzmann cosntant, d diameter of molecule)
A. `(1)/(sqrt(2)pid^(2)p)`
B. `(P)/(sqrt(2)pid^(2)T)`
C. `(KT)/(sqrt(2)pid^(2)P)`
D. `(KP)/(sqrt(2)pid^(2)T)`
