Introductory Chemistry: Foundation - Text (Looseleaf)
9th Edition
ISBN: 9781337399623
Author: ZUMDAHL
Publisher: Cengage
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Chapter 3, Problem 56AP
Interpretation Introduction
Interpretation:
To determine whether
Concept Introduction:
An element is a simplest type of a pure substance which is composed of only one type of matter. For examples: silver, gold, platinum etc.
Pure substance which is made up of two or more same type of matter combined in a definite proportion. For example: Oxygen molecule containing two atoms of oxygen.
A pure substance or compound is composed of two or more type of matter in definite proportion. For examples: ammonia which is composed by Hydrogen and nitrogen in definite proportion etc.
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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 3 Solutions
Introductory Chemistry: Foundation - Text (Looseleaf)
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