
(a)
Interpretation:
The reaction of the
Concept Introduction :
Change of enthalpy when the formation of 1mole of a compound from its elements with all substances in their standard states is referred to as the standard enthalpy of formation.
(a)

Answer to Problem 107AE
Explanation of Solution
(b)
Interpretation:
The reaction of the standard enthalpy of combustion of liquid ethanol should be written.
Concept Introduction :
Standard enthalpy of combustion- change in enthalpy when 1mole of a particular substance is completely burned in
(b)

Answer to Problem 107AE
Explanation of Solution
Change of enthalpy in burning (combine vigorously with oxygen) of 1mol of ethanol liquid under standard conditions in their standard states is the standard enthalpy of combustion of liquid ethanol.
(c)
Interpretation:The reaction of the standard enthalpy of neutralization of barium hydroxide solution by hydrochloric acid should be written.
Concept Introduction : Standard enthalpy of neutralization-change of enthalpy when solutions of alkali and acid react together to form 1mol of water under standard conditions.
(c)

Answer to Problem 107AE
Explanation of Solution
Under standard conditions, 1 mol of
The reaction is represented as follows:
(d)
Interpretation:
The reaction of the
Concept Introduction:
Change of enthalpy when the formation of 1mole of a compound from its elements with all substances in their standard states is referred to as the standard enthalpy of formation.
(d)

Answer to Problem 107AE
Explanation of Solution
(e)
Interpretation:
The reaction of the standard enthalpy of combustion of liquid benzene(
Concept Introduction:
Standard enthalpy of combustion- change in enthalpy when 1mole of a particular substance is completely burned in
(e)

Answer to Problem 107AE
Explanation of Solution
Change of enthalpy in burning (combine vigorously with oxygen) of 1mol of ethanol liquid under standard conditions in their standard states is the standard enthalpy of combustion of liquid ethanol.
(f)
Interpretation:
The reaction of enthalpy of solution of solid ammonium bromide should be written.
Concept Introduction:
Change of enthalpy when dissolution of a substance in a solvent at a constant pressure and a temperature by forming in infinite dilution.
(f)

Answer to Problem 107AE
Explanation of Solution
Solid
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Chapter 9 Solutions
Chemical Principles
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