Gas tank exploded at 1000 psig during the fire. Initial conditions of this 350 liter-tank was 30 ˚C and 250 psig. The tank compositions was 70 mole% methane (CH4) and 25% propane (C3H8), 4% helium...

Gas tank exploded at 1000 psig during the fire. Initial conditions of this 350 liter-tank was 30 ˚C and 250 psig. The tank compositions was 70 mole% methane (CH4) and 25% propane (C3H8), 4% helium (He) and the balance is ethyl mercaptan (C2H6S). Estimate the temperature (K) during the fire.

C2H6S: Tc = 225.5 K; Pc = 54.2 atm; Molar mass = 62.13 g/mol