CHEMISTRY (LOOSELEAF) >CUSTOM<
13th Edition
ISBN: 9781264348992
Author: Chang
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 20, Problem 20.28QP
Interpretation Introduction
Interpretation:
The Lewis structures for CF3CHCl2 and CF3CFH2 have to be drawn.
Concept Introduction:
Lewis-dot structure:
The sharing of electrons between atoms and forms covalent bonds. This structure denotes valence electrons of an atom by dots and also it shows the way of valence electron distributed within a molecule.
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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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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 20 Solutions
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