Compounds 1 and 2 were prepared, and the difference in their heats of combustion was found to be 17.2 kJ/mol (J. Am. Chem. Soc. 1961, 83, 606-614): H H do do H H 2 1 Shown below are the lowest-energy conformations of compounds 1 and 2. Identify which drawing matches which compound, and identify which compound has the larger heat of combustion. H H H H H att H H H O The first drawing is compound 1, and compound 1 has a larger heat of combustion because it is the less stable compound. O The first drawing is compound 2, and compound 2 has a larger heat of combustion because it is the less stable compound. The first drawing is compound 2, and compound 2 has a larger heat of combustion because it is the more stable compound. O The first drawing is compound 1, and compound 1 has a larger heat of combustion because it is the more stable compound.

Compounds 1 and 2 were prepared, and the difference in their heats of combustion was found to be 17.2 kJ/mol (J. Am. Chem. Soc. 1961, 83, 606-614): H H do do H H 2 1 Shown below are the lowest-energy conformations of compounds 1 and 2. Identify which drawing matches which compound, and identify which compound has the larger heat of combustion. H H H H H att H H H O The first drawing is compound 1, and compound 1 has a larger heat of combustion because it is the less stable compound. O The first drawing is compound 2, and compound 2 has a larger heat of combustion because it is the less stable compound. The first drawing is compound 2, and compound 2 has a larger heat of combustion because it is the more stable compound. O The first drawing is compound 1, and compound 1 has a larger heat of combustion because it is the more stable compound.

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter4: Organic Compounds: Cycloalkanes And Their Stereochemistry

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Problem 61AP: Ketones react with alcohols to yield products called acetals. Why does the all-cis isomer of...

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Concept explainers

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.

Question

Compounds 1 and 2 were prepared, and the difference in their heats of combustion was found to be 17.2 kJ/mol (J. Am. Chem. Soc.
1961, 83, 606-614):
H
H
1
Shown below are the lowest-energy conformations of compounds 1 and 2. Identify which drawing matches which compound, and
identify which compound has the larger heat of combustion.
H
H
H
H
|||I
2
H
4
H
H
The first drawing is compound 1, and compound 1 has a larger heat of combustion because it is the less stable compound.
O The first drawing is compound 2, and compound 2 has a larger heat of combustion because it is the less stable compound.
The first drawing is compound 2, and compound 2 has a larger heat of combustion because it is the more stable compound.
The first drawing is compound 1, and compound 1 has a larger heat of combustion because it is the more stable compound.

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