Q. $2\ g$ of $O_{2}$ gas is taken at $27℃$ and pressure $76\ cm.\ Hg.$ Find out volume of gas (in litre)
A) 1.53
B) 2.44
C) 3.08
D) 44.2
Explanation
(a) $PV = \mu\ RT = \frac{m}{M}RT \Rightarrow V = \frac{mRT}{MP}$
$= \frac{2 \times 10^{- 3} \times 8.3 \times 300}{32 \times 10^{- 3} \times 10^{5}} = 1.53 \times 10^{- 3}m^{3} = 1.53\ litre$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.