Question

Why perpetual motion machine of 2nd kind is impossible

Answer 1

Answer:

Perpetual motion machine of the second kind. Perpetual motion machine of the second kind is a machine which produces work from a single heat source. ... This kind of machine is impossible, since it violates the Second law of thermodynamics. Heat cannot be transferred from a colder to a hotter body.

Answer 2

☆Answer☆

Perpetual motion is the motion of bodies that continues forever. A perpetual motion machine is a hypothetical machine that can do work indefinitely without an energy source. This kind of machine is impossible, as it would violate the first or second law of thermodynamics.

These laws of thermodynamics apply regardless of the size of the system. For example, the motions and rotations of celestial bodies such as planets may appear perpetual, but are actually subject to many processes that slowly dissipate their kinetic energy, such as solar wind, interstellar medium resistance, gravitational radiation and thermal radiation, so they will not keep moving forever.

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