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When 5.00g of methan, CH4, burns 50.2 kJ of heat are produced. CH4(g)+ O2(g) > CO2()...

When 5.00g of methan, CH4, burns 50.2 kJ of heat are produced.
CH4(g)+ O2(g) > CO2() +2 H2O

a. Is the reaction exothermic or endothermic?
b. What is the enthalpy change of the reaction per mole of CH4? In other words, calculate the Change of enthalpy of the reaction in kJ/mol.

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