The diffusion coefficient of an ideal gas is proportional to its mean free path and mean speed. The absolute temperature of an ideal gas is increased 4 times and its pressure is increased 2 times.As a result, the diffusion coefficient of this gas increases `x` times. The value of `x` is........

Answer

4

Explanation

Diffusion co-efficient `prop lamda C_("mean") , lamda prop (T)/(P), C_("mean") prop sqrtT`
Diffusion co-efficient `prop (T)/(P) sqrtT`, Diffusion co-efficient `prop (T^(3//2))/(P)`
If T is increased four time and pressure is increased two times diffusion co-efficient should become 4 times.