Question

Under what conditions will a pure sample of an ideal gas not only exhibit a pressure of 1 $atm$ but also a concentration of 1 $mol$ $litr{e}^{-1}$?

• A. At $STP$
• B. When $V=22.4litre$
• C. When $T=12K$
• D. Impossible under any condition

Answer 1

Answer: (C)

When $T=12K$

As we know,
For ideal gas, $PV=nRT$

Here, given $P=1$ and $\frac{n}{V}=1$

So, $T=\frac{1}{R}=\frac{1}{0.083}=12K$