Question

1)

On increasing temperature, the fraction of total gas molecule which has acquired the most probable velocity will

a. increase

b. decrease

c. remains constant

d. can't say without knowing the pressure

2)

Which of the following is the correct units for R, the ideal gas constant?

a) L.mole/K. atm

b) L.atm/ K.mole

c) L.K/ mole. atm

d) atm.K/ mole.L

e) atm. mole/ K.L

f) K. mole/ L. atm

Answer 1

#1. On increasing temperature the kinetic energy of gas molecules increases and thus no. Of molecules having most probable velocity will increase because the increased temperature will increase the velocity of those molecules which were below the most probable velocity.

Hence option (a) is the correct answer.