As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is_________________?
Correct answer: B. Decreasing
- A. Not changed
- B. Decreasing
- C. Increasing
- D. Data sufficient, can't be predicted
Explanation
Increasing entropy generation destroys available work, or exergy, when the heat-engine system and surroundings are considered under comparable conditions. Therefore, the maximum work-producing capacity decreases rather than remaining constant.
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