Question

A gas occupies $300ml$ at ${27}^{o}C$ and $730mm$ pressure. What would be its volume at $STP$ ?

• A. $52.44ml$
• B. $152.44ml$
• C. $262.24ml$
• D. $3.5244ml$

Answer 1

Answer: (C)

$262.24ml$

$V_2=\frac{300}{1000}mL$

$P_2=\frac{730}{760}atm$

$T_2=300K$

At STP, $V_1=?$

$P_1=1atm$

$T_1=273K$

From Ideal gas equation:

$\frac{P_2{V}_2}{T_2}=\frac{P_1{V}_1}{T_1}$

$V_1$ = 0.2622 litre

Volume (V) at STP = 262.2 mL

Hence, the correct answer is option C.