A) \[-826.4\,\,kJ,\,\,+180.9\,\,kJ\]
B) \[+826.4\,\,kJ,\,\,-180.9\,\,kJ\]
C) \[-826.4\,\,kJ,\,\,-180.9\,\,kJ\]
D) \[+826.4\,\,kJ,\,\,+180.9\,\,kJ\]
Correct Answer: A
Solution :
For reaction A \[\Delta {{G}^{o}}=2\Delta {{G}^{o}}_{f}(ZnO)+2\Delta {{G}^{o}}_{f}(S{{O}_{2}})-2{{G}^{o}}_{f}(ZnS)\]\[=2[-3182-300.4+205.4]\] \[=-826.4\,\,kJ\] \[(\Delta {{G}^{o}}_{f}(element)=0)\] For reaction B \[\Delta {{G}^{o}}=\Delta {{G}^{o}}_{f}(CO)-\Delta {{G}^{o}}_{f}(ZnO)\] \[=-137.3+3282\] \[=180.9\,\,kJ\]You need to login to perform this action.
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