Chemistry Homework Solutions
#22986
Heat of formation
Methylene chloride can be prepared from the reaction of methane and chlorine, by the following equation:
CH4(g) + Cl2(g) ---> CH2Cl2(g) + HCl(g)
Calculate the standard heat of formation (ΔH˚) in kilojoules for the reaction using the following measured heats of formation.
HCl(g) + CH3Cl(g) --> CH4(g) + Cl2 ΔH˚= +98.3 kJ
CH3Cl(g)+ Cl2(g) --> CH2Cl2(g) + HCl(g) ΔH˚= -104kJ
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