Q. The numerical value of$\frac{N}{n}$ (where, $N$is the number of molecules in a given sample of gas and $n$ is the number of moles of the gas) is
A) 8.314
B) $6.02 \times 10^{23}$
C) 0.0821
D) $1.66 \times 10^{- 19}$
Explanation
(b)
Number of molecules in $n$ moles of substance$= n \times N_{0}$
$= n \times 6.023 \times 10^{23}$
$\frac{N\ (no.of\ molecules)}{n\ (no.of\ moles)} = ?$
$= \frac{n \times 6.023 \times 10^{23}}{n} = 6.023 \times 10^{23}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.