How does Gibbs free energy indicate a reaction is spontaneous at high temperatur
ID: 875177 • Letter: H
Question
How does Gibbs free energy indicate a reaction is spontaneous at high temperatures? Remember: ? G = ? H - T ? S?
The value of the entropy change and temperature product together overwhelms the positive value of the enthalpy change when they are added to it.
The value of the negative entropy change and temperature product together overwhelms the positive value of the enthalpy change when they are subtracted from it.
The value of the negative entropy change and temperature product together overwhelms the positive value of the enthalpy change when they are added to it.
The value of the entropy change and temperature product together overwhelms the positive value of the enthalpy change when they are subtracted from it.
AThe value of the entropy change and temperature product together overwhelms the positive value of the enthalpy change when they are added to it.
BThe value of the negative entropy change and temperature product together overwhelms the positive value of the enthalpy change when they are subtracted from it.
CThe value of the negative entropy change and temperature product together overwhelms the positive value of the enthalpy change when they are added to it.
DThe value of the entropy change and temperature product together overwhelms the positive value of the enthalpy change when they are subtracted from it.
Explanation / Answer
We know delta G = delta H - T delta S
-ve value of delta G shows the reaction is spontaneous.
thus,
higher the -ve value for T delta S, the greater will be the spontaeity of a reaction.
thus the correct answer to the above question will be,
D. The value of the entropy change and temperature product together overwhelms the positive value of the enthalpy change when they are subtracted from it.
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