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What is s° for b in the reaction 3 a → 2 b if ∆s°(rxn) =-277. 1 j/mol ･ k? [s° (a) = (205. 0 j/mol ･k)]

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Entropy is the degree of disorder of a system. The entropy of b is 168.95  j/mol ･k.

What is entropy?

The term entropy refers to the degree of disorder in a system. We have to know that the change in entropy of a system is the entropy of the product minus the entropy of the reactants.

Hence;

-277. 1 = [2(b) - 3(205. 0)

-277. 1  = 2b - 615

b= -277. 1 + 615/2

= 168.95  j/mol ･k

The entropy of b is 168.95  j/mol ･k.

Learn more about entropy: https://brainly.com/question/13146879