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ISBN: 9781305922198
Author: John E. McMurry
Publisher: CENGAGE L
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Chapter 14.SE, Problem 66AP
Interpretation Introduction
Interpretation:
The difference between the UV absorption maxima of benzene (204 nm) and p- toluidine (235 nm) is to be accounted.
Concept introduction:
A shift in UV absorption maxima to higher wavelengths is observed with increase in conjugation and/or with increase in the number of alkyl substituents.
To account:
For the difference between the UV absorption maxima of benzene (204 nm) and para toluidine (235 nm).
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MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10
Consider the following reaction:
CH3OH(g)
CO(g) + 2H2(g)
(Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.)
Part A
Calculate AG for this reaction at 25 °C under the following conditions:
PCH₂OH
Pco
PH2
0.815 atm
=
0.140 atm
0.170 atm
Express your answer in kilojoules to three significant figures.
Ο ΑΣΦ
AG = -150
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kJ
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Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship:
AGrxn = AGrxn + RTInQ,
AGxn+RTInQ,
where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a
is the reaction quotient.
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Chapter 14 Solutions
Student Value Bundle: Organic Chemistry, + OWLv2 with Student Solutions Manual eBook, 4 terms (24 months) Printed Access Card (NEW!!)
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