Chemistry
14th Edition
ISBN: 9781264243709
Author: Chang, Raymond
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 10, Problem 10.6QP
Interpretation Introduction
Interpretation: The stabilities of square planar and tetrahedral geometries of CH4 molecule have to be compared.
Concept Introduction:
The term molecular geometry refers to the 3-dimensional shape of the molecule by which the molecule is occupying in space with all its surrounding atoms or ions and/or lone pair of electrons. In short, molecular geometry is the three-dimensional arrangement of atoms in 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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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 10 Solutions
Chemistry
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