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enthalpy of reaction

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Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2.
From the following enthalpy of reaction data, calculate ^Hof for CaC2(s):

CaC2(s) + 2H2O------> Ca(OH)2(s) + C2H2(g) ^Ho= -127.2kJ

What Thermodynamic Quantities do I use? What are the steps to the equation? Please show all of your work and define any symbols used. Thank you.

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Solution Summary

This solution shows how to calculate the enthalpy of reaction by using the enthalpy of formation.

Solution Preview

first, find the enthalpy of formation (Hof) of C2H2, Ca(OH)2, and H2O from your book.

I found the following data from a google ...

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