Question

Density of a gas is highest at

• A. $100^{\circ }C,1atm$
• B. $273^{\circ }C,1atm$
• C. $0^{\circ }C,1atm$
• D. $25^{\circ }C,1atm$

Answer 1

Answer: (C)

We know that $d=\frac{PM}{RT}$ i.e., $d\propto P$ and $d\propto \frac{1}{T}$

Hence, density is maximum at high pressure and low temperature.