
Concept explainers
(a)
Interpretation:
The final temperature of the product and the standard enthalpy of formation of
Concept Introduction:
Specific heat can be defined as quantity of heat required to raise the temperature of
Where,
s = Specific heat
The unit of specific heat is
(a)

Answer to Problem 6.93QP
The final temperature is
Explanation of Solution
To calculate the moles of
Mass of Water =
Moles of Water =
=
Moles of Water =
To calculate the heat generated by the reaction
Moles of Water =
Enthalpy of production of
Heat generated =
=
Heat generated by the reaction=
To calculate the mass of
Mass of
=
Mass of
To calculate the final temperature
Rearranging we get,
Final temperature of the product =
(b)
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,
(b)

Answer to Problem 6.93QP
The standard enthalpy of formation is
Explanation of Solution
The reaction can be given as,
Enthalpy of reaction =
Standard enthalpy of formation of
Standard enthalpy of formation of
Standard enthalpy of formation of
Standard enthalpy of formation of
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Chapter 6 Solutions
EBK GENERAL CHEMISTRY: THE ESSENTIAL CO
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