Respuesta :
The right answer is B. The reaction will never be possible since the Gibbs energy will always be positive.
Gibbs free energy, G, enthalpy, H, and entropy, S are related as follows:
ΔG = ΔH - TΔS
We will always have a positive value for the Gibbs free energy if enthalpy is positive and entropy is negative.
This means that choice B is the best one. A reaction will always be possible if it is exothermic (H is negative), has a positive entropy change (S is positive), and G is always negative. The sign of G determines whether a response (or other physical change) is possible. The reaction cannot take place if G is positive.
The complete question is- What can you determine about the feasibility of a reaction if the enthalpy is positive and the entropy is positive?
A. The Gibbs energy will always be positive, and the reaction will never be feasible.
B. The Gibbs energy will always be negative, and the reaction will always be feasible.
OC. The reaction could be feasible above a certain temperature.
D. The reaction will usually occur because it is unlikely the entropy will be greater than the enthalpy.
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