According to Kelvin-Plank's statement, a
perpetual motion machine of ________ .
first kind is possible
first kind is impossible
second kind is impossible
second kind is possible
second kind is impossible
The Kelvin-Planck statement of the second law
tell us that it is impossible to constructs a perpetual motion machine of the
second kind.
Hence, the correct option is (C).
&Key Points:-
Wilhelm Ostwald introduced the concept
of Perpetual Motion Machine of the Second Kind (PMMSK or PMM2) is a device
which would perform work solely by absorbing energy as heat from a body. Such a
device does not violate the first law of thermodynamics.
A PMMSK is a hypothetical device which
working cyclically, receives energy as heat from a single thermal reservoirs,
and delivers as equivalent amount of work. The Kelvin-Plank statement of
the second law tells us that it is impossible to construct a perpetual
motion machine of the second kind.
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