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Physics 9 Online
jennylove:

Making a heat engine that uses its exhaust heat to do work is restricted according to which principle? second law of thermodynamics conservation of matter first law of thermodynamics conservation of energy i think its A

imqwerty:

Why do you think that it's A?

jennylove:

im honestly not sure, i just guessed

jennylove:

the second law however does state that processes that involve the transfer or conversion of heat energy are irreversible

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