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Answer: The first step in the industrial recovery of zinc

Chapter 6, Problem 25P

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QUESTION:

The first step in the industrial recovery of zinc from the zinc sulfide ore is roasting, that is, the conversion of ZnS to ZnO by heating

\(2 \mathrm{ZnS}(s)+3 \mathrm{O}_{2}(g) \rightarrow 2 \mathrm{ZnO}(s)+2 \mathrm{SO}_{2}(g)\)

\(\Delta H=-879\ \mathrm{kJ}/\mathrm{mol}\)

Calculate the heat evolved (in kJ) per gram of ZnS roasted

Questions & Answers

QUESTION:

The first step in the industrial recovery of zinc from the zinc sulfide ore is roasting, that is, the conversion of ZnS to ZnO by heating

\(2 \mathrm{ZnS}(s)+3 \mathrm{O}_{2}(g) \rightarrow 2 \mathrm{ZnO}(s)+2 \mathrm{SO}_{2}(g)\)

\(\Delta H=-879\ \mathrm{kJ}/\mathrm{mol}\)

Calculate the heat evolved (in kJ) per gram of ZnS roasted

ANSWER:

Step 1 of 2

The goal of the problem is to calculate the heat evolved (in kJ) per gram of ZnS roasted.

Given reaction:

         

 = - 879 kJ/mol

 

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