If a gas sample has a pressure of 30.7 kpa at 0.00, by how many degrees celsius does the temperature have to increase to cause the pressure to double?

Pressure of the gas P1 = 30.7 kpa

When it doubled P2 = 61.4 kpa

Temperature T1 = 0 = > T1 =. 0 + 273 = 273

Temperature T2 = ?

We have pressure temperature equation P1T1 = P2T2

=> T2 = P1T1 / P2 = (30.7 x 273) / 61.4 = 136.5

So the temperature for doubling the pressure is 136.5.