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Suppose that 0.650 mol of methane,CH4 (g) , is reacted with 0.800 mol of fluorine,F2 (g) , forming CF4 (g) and HF (g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released? substance - heat of formation kJ/mol C(s)- 718.4 CF4 (g)- (-679.9) CH4 (g)- (-74.8) H (g)- 217.94 HF (g)- (-268.61)

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