Question

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : At constant temperature and pressure, equal volumes of all gases contain the same number of molecules. Reason (R) : At constant temperature, the mean molecular energies of these gases will be equal. In the light of the above statements, choose the most appropriate answer from the options given below :

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

Hint:

Mean molecular energy depends only on temperature ($T$), while the number of molecules depends on $P, V,$ and $T$.

Answer 1

The Correct Option is B