Given that molar enthalpy of combustion of acetylene (C2H2, 26.04 g/mol) is -129

Question

Given that molar enthalpy of combustion of acetylene (C2H2, 26.04 g/mol) is -1299 kJ/mol at 25 degree C and 1 atm, which of the following is false? The enthalpy of the reactants is lower than that of the products. The amount of heat released is proportional to the amounts of reactants. When 104 g C2H2 combusts, about 5200 kJ of heat is released. The enthalpy of combustion per gram acetylene is -49.9 kJ/g. To form 2 mol C2H2 and 5 mol O2 from 4 mol CO2 and 2 mol H20, 2598 kJ of energy is required.

Explanation / Answer

a.is false

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