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Question
The following pictures represent three equilibrium mixtures for the interconversion of A, B, and C molecules (unshaded spheres) into X, Y, and Z molecules (shaded spheres), respectively. What is the sign of 
G for each of the three reactions?
A) G (1) = -; G (2) = +; G (3) = 0
B) G (1) = -; G (2) = 0; G (3) = +
C) G (1) = 0; G (2) = -; G (3) = +
D) G (1) = +; G (2) = 0; G (3) = -
Answer
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