Chemistry
Squidy54
32

PLZ HELP ME !!!!Consider the illustration above. Imagine that the energy conversion device is a motor. We know there is energy in and energy out. In order for the efficiency of the motor to be 100%, Ein = Eout. Is this an accurate representation of the efficiency of a motor? Explain based on the law of conservation of energy. A) No. Some of the chemical energy that is Ein is destroyed because it is lost as heat. B) No. All of the Ein is not converted to useful energy. Some is converted to heat energy. C) Yes. The energy in would be chemical energy. The energy out would be both mechanical and electrical energy. D) Yes. The chemical energy is converted to heat energy and that in turn because mechanical energy or energy of motion.

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(1) Answers
coolkid214

B) No. All of the Ein is not converted to useful energy. Some is converted to heat energy There is no such thing as 100% efficient machine, whenever work is being done energy is lost as heat.

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