10 % sites of catalyst bed have adsorbed by `H_(2)` on Heating `H_(2)` gas is evloved from sites and collected at 0.03 atm and 300 K in a small vessel of `2.46 cm^(3)`. no. of sites available is `5.4 xx 10^(16) ` per `cm^(2)` and surface area is `1000 cm ^(2)` . find out the no. of suface sites occupied per molecule of `H_(2)`.
20% surface sites have adsorbed N_2 . On heating N_2 gas is evolved from sites and were collected at 25^@C and 0.001 atm in a container of volume 2.46cm^(3) . Density of surface sites is 6 xx 10^(4) cm^(-2) and surface area is 10^(3) cm^(2) .Find the number of surface sites occupied per molecule of N_2 .
Find the mass of 7 xx 10^(20) molecules of H_2 gas.
Four molecules have the velocities 3 xx 10 cms^(-1), 4 xx 10^4cms^(-1), 2 xx 104cms^(-1) and 5 xx 10^4cms^(-1) .. Find the RMS velocity of the molecules.
For a molecule of an ideal gas, the number density is 2sqrt(2)xx10^(8) cm^(-3) and the mean free path is (10^(-2))/(pi) cm . The diameter of the gas molecule is
If gas has a RMS velocity 5.2 xx 10^4 cms^(-1) , find the average and most probable velocities of the gas
The mass of a particle is 10^(10)g and its radius is 2 xx 10^(-4)cm . If its velocity is 10^(-6) cm sec^(-1) with 0.0001% uncertainty in measurement, the uncertainty in its position is :
A hollow cylinder having external radius 8 cm and height 10 cm has a total surface area of 338 pi cm^2 Find the thickness of the hollow metallic cylinder.
NARENDRA AWASTHI-SURFACE CHEMISTRY-Level 3 - Assertion - Reason Type Questions
