For the reaction A ? B, ?G = -60 kJ/mol. The reaction is started with 10 mmol of

ID: 21935 • Letter: F

Question

For the reaction A ? B, ?G = -60 kJ/mol. The reaction is started with 10 mmol of A. no B is initially present. After 24 hours, analysis reveals the presence of 0.2 mmol of B, 9.8 mmol of A. Which is the most likely explanation

Select one:
a. A and B have reached equilibrium concentrations.
b. Formation of B is thermodynamically unfavorable.
c. The result described is impossible, given the fact that delta G is -60 kJ/mol.
d. The activation energy for the reaction is very large; equilibrium has not been reached by 24 hours.
e. An enzyme has shifted the equilibrium toward A.

Explanation / Answer

d. Activation energy is very large if equilibrium has not been reached after 24 hours.

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For the reaction A + B ó C + D Assume that the standard change in free energy ha

For the reaction A ? B, ?G = -60 kJ/mol. The reaction is started with 10 mmol of

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For the reaction A ? B, ?G = -60 kJ/mol. The reaction is started with 10 mmol of

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Explanation / Answer

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