Question

The enthalpy and entropy changes for a reaction at 298 K are ?H = -102 kJ and ?S = -208 J/K. Which of the following best describes this reaction A) The reaction is spontaneous because the entropy decreases B) The reaction is spontaneous and driven by the enthalpy change. C) The reaction is not spontaneous but could be spontaneous at a higher temperature. D) The reaction is not spontaneous because heat is absorbed.

          The enthalpy and entropy changes for a reaction at 298 K are ?H = -102 kJ and ?S = -208 J/K. Which of the following best describes this reaction
A) The reaction is spontaneous because the entropy decreases
B) The reaction is spontaneous and driven by the enthalpy change.
C) The reaction is not spontaneous but could be spontaneous at a higher temperature.
D) The reaction is not spontaneous because heat is absorbed.

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The enthalpy and entropy changes for a reaction at 298 K are ?H = -102 kJ and ?S = -208 J/K. Which of the following best describes this reaction
A) The reaction is spontaneous because the entropy decreases
B) The reaction is spontaneous and driven by the enthalpy change.
C) The reaction is not spontaneous but could be spontaneous at a higher temperature.
D) The reaction is not spontaneous because heat is absorbed.

Added by Travis N.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

07/19/2023

Step 1

To do this, we can use the Gibbs free energy equation: ΔG = ΔH - TΔS where ΔG is the change in Gibbs free energy, ΔH is the change in enthalpy, T is the temperature in Kelvin, and ΔS is the change in entropy. Given the values for ΔH, ΔS, and T, we can calculate Show more…

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