Interpretation:
The standard enthalpies of formation of
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,
Answer to Problem 10.131QP
Standard enthalpy of formation of
Standard enthalpy of formation of
Change in enthalpy of formation of
Explanation of Solution
The chemical equations can be given,
Using the values of standard enthalpies of formation,
Standard enthalpy of formation of
Standard enthalpy of formation of Water =
The equations can be given as,
The equations are summed up to get the standard enthalpy of formation of
Therefore, standard enthalpy of formation of
Similarly, the equations are summed up to get the standard enthalpy of formation of
To calculate the change in enthalpy of formation of
The equation can be given as,
Change in enthalpy of formation of
The change in enthalpy of formation of
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Chapter 10 Solutions
Chemistry: Atoms First
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