A system consists of two types of gas molecules A and B having same number density `2 xx 10^(25)//m^3`.The diameter of A and B are 10 Å and 5 Å respectively. They suffer collision at room temperature. The ratio of average distance covered by the molecule A to that of B between two successive collision is `"________" xx 10 ^(-2)`

Estimate the number of collisions per second suffered by a molecule in a sample of hydrogen at STP.The mean free path (average distance covered by a molecule between successive collisions)=1.38xx10^(-5)cm.

Two gases Ar (40) and Xe (131) at same temperature have same number density. Their diameters are 0.07 nm and 0.10 nm respectively. Find the ratio of their mean free time

Calculate the diameter of one molecule of an ideal gas having number density 2xx10^(8)cm^(-3) and mean free path of the molecule is 10^(-8)cm .

The average speed of air molecules is 485 "ms"^(-1) . At STP the number density is 2.7xx10^(25)m^(-3) and diameter of the air molecule is 2xx10^(-10) m . The value of mean free path for the air molecule is

Calculate the diameter of one molecule of an ideal gas having number density 2xx10^(8) cm^(-3) and mean free path of the molecule is 10^(-8) cm.

The resistivity of material of a wire is 2xx10^(-8) Omegam and the number of free electrons per unit volume is 9xx10^(28) per m^3 . Calculate the relaxation time which is defined as the average time interval between two successive collisions. Also calculate the mean free path of electron (distance covered by electron between two successive collisions) if the drift velocity of electrons is 1.7 xx10^(-4)m//s .

Two numbers A and B are respectively 10% and 25% more than third number respectively. What is the ratio of A and B?

Calculate the mean free path of gas molecules, if number of molecules per cm^(3) is 3 xx 10^(19) and diameter of each "molecule" is 2Å .

The mean free path of a gas molecule at 27^(@)C is 2 cm. If the rms velocity of the gas at that temperature is 10m//s , what is the time interval between two successive collisions?