Which combination of r Ho and r S o always yields a spontaneous reaction under standard conditions? A) ΔrH >0, ΔrS >0 B) ΔrH >0, ΔrS < 0 C) ΔrH < 0, ΔrS >0 D) ΔrH < 0, ΔrS
Which combination of r Ho and r S o always yields a spontaneous reaction under standard conditions? A) ΔrH >0, ΔrS >0 B) ΔrH >0, ΔrS < 0 C) ΔrH < 0, ΔrS >0 D) ΔrH < 0, ΔrS
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Which combination of r Ho and r S o always yields a spontaneous reaction under standard conditions?
A) ΔrH >0, ΔrS >0
B) ΔrH >0, ΔrS < 0
C) ΔrH < 0, ΔrS >0
D) ΔrH < 0, ΔrS
Expert Solution
Step 1
The relationship between ΔGr , ΔHr and ΔSr is given by
ΔGr = ΔHr - TΔSr
where ΔSr = entropy change in reaction
ΔGr = Gibbs free energy change in reaction
and ΔHr = enthalpy change in the reaction
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