The most stable conformation of the molecule shown is to be drawn. Concept introduction: When the bulkier substituent attached to a cyclohexane ring is in the equatorial position, the chair conformation is more favored. In the disubstituted cyclohexane, the substituents that are on the opposite side of the ring are trans to each other. If there are more than one substituent attached, then the conformation in which maximum substituents are in the equatorial position is favored and is more stable. Substituents that are trans to each other in one chair conformation remain trans after the chair flip.

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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 Previous Answers Request Answer □? kJ × Incorrect; Try Again; 2 attempts remaining 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. Provide Feedback Next >

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Chapter 4, Problem 4.13P

Interpretation Introduction

Interpretation:

The most stable conformation of the molecule shown is to be drawn.

Concept introduction:

When the bulkier substituent attached to a cyclohexane ring is in the equatorial position, the chair conformation is more favored. In the disubstituted cyclohexane, the substituents that are on the opposite side of the ring are trans to each other. If there are more than one substituent attached, then the conformation in which maximum substituents are in the equatorial position is favored and is more stable. Substituents that are trans to each other in one chair conformation remain trans after the chair flip.

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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 Previous Answers Request Answer □? kJ × Incorrect; Try Again; 2 attempts remaining 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. Provide Feedback Next >

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