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Question
Determine the enthalpy change for the decomposition of calcium carbonateCaCO3(s) CaO(s) + CO2(g)
given the thermochemical equations below.
Ca(OH)2(s) CaO(s) + H2O(
) DrH = 65.2 kJ/mol-rxnCa(OH)2(s) + CO2(g) CaCO3(s) + H2O(
) DrH = -113.8 kJ/mol-rxnC(s) + O2(g) CO2(g) DrH = -393.5 kJ/mol-rxn
2 Ca(s) + O2(g) 2 CaO(s) DrH = -1270.2 kJ/mol-rxn
A.+48.6 kJ/mol-rxn
B.+179.0 kJ/mol-rxn
C.+345.5 kJ/mol-rxn
D.+441.0 kJ/mol-rxn
E.+1711.7 kJ/mol-rxn
Answer
This answer is hidden. It contains 2 characters.
Related questions
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Q:
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All of the following relationships are true EXCEPT
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If a chemical reaction is exothermic, but not spontaneous, which of the following must be true?
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