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Given the following data:
P4(s) + 6Cl2(g)→4PCl3(g) ΔrH=-2439 kJ
4PCl5(g)→P4(s)+10Cl2(g) ΔrH=+3438 kJ
Using Hess's Law, the enthalpy of reaction for the following equation:
PCl5(g)→PCl3(g)+Cl2(g)
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