
Concept explainers
a)
Interpretation: The heat of combustion from standard enthalpies of formation has to be calculated.
Concept Introduction:
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 heat of combustion
a)

Answer to Problem 6.54QP
The heat of combustion is calculated to be
Explanation of Solution
Standard enthalpy of formation of
Standard enthalpy of formation of
Standard enthalpy of formation of
Standard enthalpy of formation of
Heat of combustion,
The heat of combustion for the given reaction =
b)
Interpretation: The heat of combustion from standard enthalpies of formation has to be calculated.
Concept Introduction:
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 heat of combustion
b)

Answer to Problem 6.54QP
The heat of combustion is calculated to be
Explanation of Solution
Standard enthalpy of formation of
Standard enthalpy of formation of
Standard enthalpy of formation of
Standard enthalpy of formation of
Heat of combustion,
The heat of combustion for the given reaction =
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Chapter 6 Solutions
General Chemistry
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