Question

.

At what temperature in degree centigrade will the
volume of a gas, which is originally at 0°C,
double itself, pressure remaining constant.
(Ans. 273 °C)​

Answer 1

(R is a universal constant.) Thus, volume doubles when temperature doubles. At 0°C, the absolute temperature is T = 273.15 K. The double of that is 546.30 K = +273.15°C.