The chemical equation for the fermentation of glucose into ethanol is
C6H12O6(s) → 2 C2HsOH(ℓ)+ 2 CO2(g)
Using ∆fH° values at 25 °C, calculate ∆rH° for this reaction. (See Question 23 for ∆fH° for glucose.)
Interpretation:
The value of
Concept introduction:
The change in the enthalpy of a reaction when reactant is converted into product under standard conditions is called standard enthalpy of reaction.
The expression for standard enthalpy of reaction is,
Here,
Explanation of Solution
The value of
Given:
Refer to Appendix L for the values of standard enthalpy of formation.
The standard enthalpy of formation of
The standard enthalpy of formation of
The standard enthalpy of formation of
The given balanced chemical equation is:
The
Substitute the value of
The value of
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Chapter 24 Solutions
Chemistry and Chemical Reactivity - AP Edition
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