Question

Which one of the following corresponds to one mole of a gas at S.T.P.?

• A. $P=1$ $atm$, $T={273}^{o}C$, $V=22.4$ $litre$
• B. $P=1$ $atm$, $T=273K$, $V=22.4$ $litre$
• C. $P=1$ $atm$, $T=273K$, $V=1$ $litre$
• D. $P=0.5$ $atm$, $T=273K$, $V=2$ $litre$

Answer 1

The correct option is B $P=1$ $atm$, $T=273K$, $V=22.4$ $litre$

$STP$ means standard Temperature and Pressure.

Standard Temperature is $273K$ ($0^{\circ }C$) and standard pressure is $1$ $atm$.

Also, the standard molar volume is $22.4$ $L$.

Hence, the correct answer is option $\text{B}$.