Question

At what temperature (in centigrade) will the volume of a gas at $0^0$C double itself while pressure remains constant?

• A. 273 K
• B. 273⁰ C
• C. 546⁰ C
• D. 0 K

Answer 1

The correct option is B

273⁰ C

Let the volume of the gas at $0^0$ C = V ml

Thus, we have: $V_1$ = V ml $V_2$= 2V ml

$T_1$ = 0+273 = 273 K $T_2$ = ?

By applying Charle’s Law, $\frac{V_1}{T_1}$ = $\frac{V_2}{T_2}$

Substituting the corresponding values, we have

$T_2=\frac{2V\times 273}{V}$ = 546 K

$T_2$ = 546-273 = ${273}^0$ C