Interpretation: The relation between ‘heat death’ of the universe with the quality of energy needs to be explained.
Concept introduction: Law of conservation of energy states that conversions of energy from one form to another is possible but creation or destroy of energy is impossible. This law indicates that energy of the universe is constant.
Answer to Problem 3RQ
Quality of energy decreases on use and energy is spread throughout the universe.
Explanation of Solution
Heat death of the universe states that all energy will be spread evenly throughout the universe and everything will be at the same temperature. At this point, there is no possibility to do work and the universe will be dead. As energy is used, its quality decreases because it goes from being concentrated to being more spread out.
When energy is used to do work degrade of usefulness of energy occurs.
Chapter 10 Solutions
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