The heat of formation at 25°C of liquid acetone, CH,C(O)CH;(1) is -247.5 kJ/mol. Which of the following is the correct heat of formation reaction for CH,C(0)CH3(1) )?
The heat of formation at 25°C of liquid acetone, CH,C(O)CH;(1) is -247.5 kJ/mol. Which of the following is the correct heat of formation reaction for CH,C(0)CH3(1) )?
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:The heat of formation at 25°C of liquid acetone, CH₃C(O)CH₃(l), is -247.5 kJ/mol.
Which of the following is the correct heat of formation reaction for CH₃C(O)CH₃(l)?
![### Thermochemical Equations
#### A.
\[
3 \, \text{C(s, graphite)} + 6 \, \text{H}_2\text{(g)} + \text{O}_2\text{(g)} \rightarrow \text{CH}_3\text{C(O)CH}_3\text{(l)}
\]
\[
\Delta H_f^\circ = -247.5 \, \frac{\text{kJ}}{\text{mol}}
\]
#### B.
\[
\text{CH}_3\text{C(O)CH}_3\text{(l)} + 4 \, \text{O}_2\text{(g)} \rightarrow 3 \, \text{CO}_2\text{(g)} + 3 \, \text{H}_2\text{O(g)}
\]
\[
\Delta H_f^\circ = -247.5 \, \frac{\text{kJ}}{\text{mol}}
\]
#### C.
\[
3 \, \text{C(s, graphite)} + 3 \, \text{H}_2\text{(g)} + \frac{1}{2} \, \text{O}_2\text{(g)} \rightarrow \text{CH}_3\text{C(O)CH}_3\text{(l)}
\]
\[
\Delta H_f^\circ = -247.5 \, \frac{\text{kJ}}{\text{mol}}
\]
#### D.
\[
6 \, \text{C(s, graphite)} + 6 \, \text{H}_2\text{(g)} + \text{O}_2\text{(g)} \rightarrow 2 \, \text{CH}_3\text{C(O)CH}_3\text{(l)}
\]
\[
\Delta H_f^\circ = -247.5 \, \frac{\text{kJ}}{\text{mol}}
\]
#### E.
\[
\text{C}_3\text{(s, graphite)} + 3 \, \text{H}_2\text{(g)} + \frac{1}{2} \, \text{O}_2\text{(g)} \rightarrow \text{CH](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb3cca2f6-99a8-4436-ac34-ddd5c6eac033%2Fd7a4a6a9-49e9-4e16-95fd-897d69719b78%2Fg9ho6o_processed.png&w=3840&q=75)
Transcribed Image Text:### Thermochemical Equations
#### A.
\[
3 \, \text{C(s, graphite)} + 6 \, \text{H}_2\text{(g)} + \text{O}_2\text{(g)} \rightarrow \text{CH}_3\text{C(O)CH}_3\text{(l)}
\]
\[
\Delta H_f^\circ = -247.5 \, \frac{\text{kJ}}{\text{mol}}
\]
#### B.
\[
\text{CH}_3\text{C(O)CH}_3\text{(l)} + 4 \, \text{O}_2\text{(g)} \rightarrow 3 \, \text{CO}_2\text{(g)} + 3 \, \text{H}_2\text{O(g)}
\]
\[
\Delta H_f^\circ = -247.5 \, \frac{\text{kJ}}{\text{mol}}
\]
#### C.
\[
3 \, \text{C(s, graphite)} + 3 \, \text{H}_2\text{(g)} + \frac{1}{2} \, \text{O}_2\text{(g)} \rightarrow \text{CH}_3\text{C(O)CH}_3\text{(l)}
\]
\[
\Delta H_f^\circ = -247.5 \, \frac{\text{kJ}}{\text{mol}}
\]
#### D.
\[
6 \, \text{C(s, graphite)} + 6 \, \text{H}_2\text{(g)} + \text{O}_2\text{(g)} \rightarrow 2 \, \text{CH}_3\text{C(O)CH}_3\text{(l)}
\]
\[
\Delta H_f^\circ = -247.5 \, \frac{\text{kJ}}{\text{mol}}
\]
#### E.
\[
\text{C}_3\text{(s, graphite)} + 3 \, \text{H}_2\text{(g)} + \frac{1}{2} \, \text{O}_2\text{(g)} \rightarrow \text{CH
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