If 42.0 kJ of heat is added to a 32.0-g sample of liquid methane under 1 atm of pressure at a temperature of - 170 oC, what are the final state and temperature of the methane once the system equilibrates? Assume no heat is lost to the surroundings. The normal boiling point of methane is - 161.5 oC. The specific heats of liquid and gaseous methane are 3.48 and 2.22 J/g-K, respectively?

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P 1.00 atm 42.0 kJ 32.0 g CH4 AHvap-820 kJ/mol T170C