
Concept explainers
Using data from Appendix 2, calculate the standard enthalpy of the following reaction.
(a) −608.7 kJ/mol (b) −81.1 kJ/mol (c) −37.1 kJ/mol (d) +81.1 kJ/mol (e) +37.1 kJ/mol

Interpretation:
The standard enthalpy of reaction has to be calculated.
Concept Introduction:
Standard enthalpy of reaction:
The change in enthalpy that is associated with the formation of one mole of a substance from its related elements being in standard state is called standard enthalpy of formation (
The standard enthalpy of reaction is the enthalpy of reaction that takes place under standard conditions.
The equation for determining the standard enthalpies of compound and element can be given by,
To calculate: The standard enthalpy of given reaction
Answer to Problem 10.1KSP
The enthalpy change of the reaction is
Explanation of Solution
Reasons for true option:
Standard enthalpy of formation of
Standard enthalpy of formation of
Standard enthalpy of formation of
Standard enthalpy of formation of
Reasons for false option:
The enthalpy of reaction from the given data shows that the options (a), (b), (c) and (d) are incorrect.
The standard enthalpy of given reaction was calculated.
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Chapter 10 Solutions
Chemistry: Atoms First
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