Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 6 - Problems: 6.6

Answer

See explanation below.

Work Step by Step

The amount of change in internal energy is same in both cases. By the law of conservation of energy, change in energy of the universe is zero. This requires that the change in energy of the system equals an opposite change in energy of the surroundings. Since both systems consume same amount of electrical energy, change in energy of heater equals that of the air conditioner
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