PMM1 Perpetual Motion Machine of the first kind

PMM1 Perpetual Motion Machine of the first kind

An imaginary device which delivers
work continuously without absorbing energy from the surroundings is called a
Perpetual Motion machine of the first kind. Since the device has to deliver
work continuously, it has to operate on a cycle. If such a  device 
does not absorb  energy from its surroundings ∫dQ =0. From the first law, it can be observed that ∫dW =0, if

∫ dQ = 0. Therefore such a device is impossible from first law of
thermodynamics.

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