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22 July, 17:42

Why is it reasonable to say that no system is 100% efficient?

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  1. 22 July, 19:28
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    Generally, frictional losses are more predominant for the machines being not 100% efficient. This friction leads to the loss of energy in the form of heat, into the surroundings. Some of the supplied energy may be utilised to change the entropy (measure of randomness of the particles) of the system.
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