A mixture of helium and hydrogen gases is filled in a vessel at `30^(@) C`. Compare the rms velocities of molecules of the two gases. Atomic weights of hydrogen and helium are 1 and 4 respectively.

At what temperature the rms velocity of helium molecules will be equal to that of hydrogen molecules at NTP ?

We have two vessels of equal volume, one filled with hydrogen and the other with an equal mass of Helium. The common temperature is 27^(@)C a. What is the relative number of molecules in the two vessel? b. If pressure of Hydrogen veseel is 2 atm, what is the pressure of Helium? c. IF the temperatrue of Helium is kept at 27^(@)C and that of hydrogen is changed, at what temperature will its pressure become equal to that of helium? THe molceular weights of hydrogen and helium are 2 and 4 respectively.

Compared to hydrogen the atom of helium has

The temperature at which rms velocity of helium molecules is equal to the rms velocity of hydrogen molecules at NTP is

A vessel A contains hydrogen and another vessel B whose volume is twice that of A contains same mass of hydrogen at same temperature. Compare (i) average KE of hydrogen and oxygen molecule. (ii) root mean square speeds of molecules (iii) pressure of gases in A and B. Molecular weight of hydrogen and oxygen are 2 and 32 respectively.

There is a mixture of hydrogen and oxygen gases in a vessel. The root mean square speed of the oxygen molecules is

At a given temperature the ratio of r.m.s velocities of hydrogen molecule and helium atom will be

A flask contains hydrogen and helium in the ratio 2:1 by mass. The temperature of the mixture is 27^(@)C . Obtin the ratio of rms speeds of the molecules of the two gases. Atomic mass of hydrogen =2, molecular mass of helium =4