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The standard enthalpy of formation at 298k for ccl4,h2o,co2,hcl are -22.5,-57.8,-94.1 and-22.1 kcal/mol.calculate ▲rH FOR reaction ccl4+2h2o→co2+HCL

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dHrxn = (n*dHformation products) - (n*dHformation reactants)

-41.4Kcal

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