(A): Equal moles of helium and oxygen gases are given cqual quantities of heat at constant volume. There will be greater rise in the temperature of helium compared to that of oxygen.
(R): The molecular weight of oxygen is greater than the moleculat weight of helium.

Options

A. Both (A) and ( R) are true and (R ) is the correct explanation of (A)
B. Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
C. (A) is true but (R ) is false
D. Both (A) and (R ) are false

Answer

B