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Gibbs Free Energy Practice Problems

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Last updated over 5 years ago
15 questions
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Question 1
1.

Calculate the change in Gibb's free energy (ΔG) for the following reactions given the free energy values provided. Which reactions can happen spontaneously?: Recall: ΔG = G (final) – G (initial)

C4H8O3N2+ H2O → 2 C2H5O2N

Question 2
2.

Calculate the change in Gibb's free energy (ΔG) for the following reactions given the free energy values provided. Which reactions can happen spontaneously?: Recall: ΔG = G (final) – G (initial)

C4H8O3N2+ H2O → 2 C2H5O2N

Note: Be sure to include units.

Question 3
3.

Is this reaction...

Question 4
4.

Calculate the change in Gibb's free energy (ΔG) for the following reactions given the free energy values provided. Which reactions can happen spontaneously?: Recall: ΔG = G (final) – G (initial)

H2O → H2 + ½ O2

Question 5
5.

Calculate the change in Gibb's free energy (ΔG) for the following reactions given the free energy values provided. Which reactions can happen spontaneously?: Recall: ΔG = G (final) – G (initial)
H2O → H2 + ½ O2

Note: Be sure to include units.

Question 6
6.

Is this reaction...

Question 7
7.

Calculate the change in Gibb's free energy (ΔG) for the following reactions given the free energy values provided. Which reactions can happen spontaneously?: Recall: ΔG = G (final) – G (initial)

3 CH4+ NH3 + 3 O2 → C3H7O2N + 4 H2O

Question 8
8.

Calculate the change in Gibb's free energy (ΔG) for the following reactions given the free energy values provided. Which reactions can happen spontaneously?: Recall: ΔG = G (final) – G (initial)

3 CH4+ NH3 + 3 O2 → C3H7O2N + 4 H2O

Note: Be sure to include units.

Question 9
9.

Is this reaction...

Question 10
10.

Calculate the Gibbs free energy change (ΔG) for the following chemical reaction:

ATP --> ADP + Pi

The reaction occurs at 68 °F, the change in heat (ΔH) = 19,070 cal, and the change in entropy (ΔS) = 90 cal/K.

Question 11
11.

Calculate the Gibbs free energy change (ΔG) for the following chemical reaction:

ATP --> ADP + Pi

The reaction occurs at 68 °F, the change in heat (ΔH) = 19,070 cal, and the change in entropy (ΔS) = 90 cal/K.

Note: Be sure to give your answer in kcal.

Question 12
12.

Calculate the Gibbs free energy change (ΔG) for the following chemical reaction:

glutamate + NH3 --> glutamine + H2O

The reaction occurs at 68 °F, the change in heat (ΔH) = 4103 cal, and the change in entropy (ΔS) = 2.4 cal/K.

Question 13
13.

Calculate the Gibbs free energy change (ΔG) for the following chemical reaction:

glutamate + NH3 --> glutamine + H2O

The reaction occurs at 68 °F, the change in heat (ΔH) = 4103 cal, and the change in entropy (ΔS) = 2.4 cal/K.

Note: Be sure to give your answer in kcal.

Question 14
14.

Which of the reactions occur spontaneously?

Question 15
15.

Which of the reactions is endergonic?