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WebAssign for Zumdahl's Chemical Principles, 8th Edition [Instant Access], Single-Term
8th Edition
ISBN: 9780357119112
Author: Zumdahl; Steven S.
Publisher: Cengage Learning US
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Chapter 9, Problem 108AE
Interpretation Introduction
Interpretation: The value of q, w and ΔE in kJ for the compression of the balloon that is filled with He gas needs to be determined with the below conditions at constant P:
- Mass of He = 313 g
- Pressure of He = 1.00 atm
- Volume of He = 1910 L
- Molar heat capacity = 20.8 J/°C.mol
- Final temperature = 41.6 °C
- Final volume = 1643 L
Concept Introduction: At constant volume the change in heat for a system to change the internal energy is represented as ΔE or qV. At constant pressure the change in heat for a system to change the enthalpy is represented as ΔH or qp. From the first law of
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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
Submit
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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 9 Solutions
WebAssign for Zumdahl's Chemical Principles, 8th Edition [Instant Access], Single-Term
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