
Concept explainers
(a)
Interpretation:
The equation for the formation of Acetylene and the maximum amount of heat from combustion of Acetylene 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,
(a)

Answer to Problem 6.102QP
Explanation of Solution
Calcium carbide upon reaction with Water gives Calcium hydroxide and Acetylene. The
(b)
Interpretation:
The equation for the formation of Acetylene and the maximum amount of heat from combustion of Acetylene 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,
(b)

Answer to Problem 6.102QP
The maximum amount of heat obtained is
Explanation of Solution
The combustion reaction of Acetylene can be given as,
Standard enthalpy of formation of
Standard enthalpy of formation of
Standard enthalpy of formation of
Standard enthalpy of formation of
Enthalpy of reaction=
To calculate the moles of
Moles of
Moles of
To calculate the amount in heat for
Amount of heat =
Amount of heat =
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Chapter 6 Solutions
EBK GENERAL CHEMISTRY: THE ESSENTIAL CO
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