Heat requirement for decomposition of a compound into its elements is _____________ that is evolved during the formation of that compound from its elements?
Correct answer: C. The same
- A. Greater than
- B. Less than
- C. The same
- D. Different than
Explanation
Decomposition and formation are reverse processes, so their heats have equal magnitude and opposite signs. Thus the heat required for decomposition equals the heat evolved during formation in magnitude.
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