

This is based on Charle’s law. According the Charle’s law, V1 / T1 = V2 / T2
Let us consider room temperature to be 200C. Hence, in Kelvin scale T1 = 20 + 273 = 293K
V1 = 18.4 lit
V2 = 36.8 lit
Going by the fact, V1 / T1 = V2 / T2
We get 18.4 / 293 = 36.8 / T2
T2 = (293 * 36.8 ) / 18.4
= 586 K = 586 – 273 = 3130C
