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General Chemistry

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Thermodynamics

Question
4 out of 5
 

Mercury sulfide can be converted to mercury by heating while exposed to air. What is probably true about this reaction?

image\27369 ch 10 Q 4.png



A The reaction is nonspontaneous
B The reaction is endothermic
C O2 acts as the catalyst
D None of the above can be ascertained without further data
Ans. D This question tests your knowledge and ability to make reasonable judgments based on a limited amount of information. We are given only an equation and a description of that equation. Without further data on this reaction, we cannot be sure whether the reaction is exothermic or endothermic. We cannot say whether the reaction is spontaneous or nonspontaneous without pertinent data. Choice C is untrue.

Thermodynamics Flashcard List

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