Given the entropy change for the first two reactions

Chapter 10, Problem 10.1.83

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QUESTION:

Given the entropy change for the first two reactions below, calculate the entropy change for the third reaction below. S8(s) + 8O2(g) 8SO2(g) S = 89 J/K 2SO2(s) + O2(g) 2SO3(g) S = 188 J/K S8(s) + 12O2(g) 8SO3(g) S = ?

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QUESTION:

Given the entropy change for the first two reactions below, calculate the entropy change for the third reaction below. S8(s) + 8O2(g) 8SO2(g) S = 89 J/K 2SO2(s) + O2(g) 2SO3(g) S = 188 J/K S8(s) + 12O2(g) 8SO3(g) S = ?

ANSWER:

Step 1 of 3

The compound  can be  prepared in two different ways. The formation of involves both exothermic and endothermic processes.

The entropy of a required reaction can be obtained by using the stoichiometric relationship between the reactants.

 

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