Calcium carbide 1CaC22 reacts with water to form acetylene

Chapter , Problem 5.76

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Calcium carbide 1CaC22 reacts with water to form acetylene 1C2H22 and Ca1OH22. From the following enthalpy of reaction data and data in Appendix C, calculate Hf for CaC21s2: CaC21s2 + 2 H2O1l2 Ca1OH221s2 + C2H21g2 H = -127.2 kJ

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