Question

Density of carbon monoxide is maximum at:

• A. $2atm$ and $600K$
• B. $0.5atm$ and $273K$
• C. $6atm$ and $1092K$
• D. $4atm$ and $500K$

Answer 1

Answer: (D)

From ideal gas equation ;

$d=\frac{PM}{RT}$

$\therefore M$ and $R$ are Constant for a particular gas

$\therefore d\propto \frac{P}{T},$ i.e.

(a) $\frac{P}{T}=\frac{2}{600}=0.0033$

(b) $\frac{P}{T}=\frac{0.5}{273}=0.00183$

(c) $\frac{P}{T}=\frac{6}{1092}=0.00549$

(d) $\frac{P}{T}=\frac{4}{500}=0.0080$

$\therefore P/T$ ratio is highest at $4atm$ and $500K$.

$\therefore$ Density of $CO$ is maximum at this condition