If the heat rejected from the system is
zero, then which of the following statement will hold TRUE?
When net-work is equal to
the heat absorbed, work efficiency is 100 %
Heat is exchanged from one
heat reservoir only
It violates Kelvin-Planck’s
statement
All options are correct
All options are correct
Also,
since Kelvin-Planck’s rejection means heat is exchanged from one heat reservoir
only.
Now,
from Kelvin-Planck’s statement we know that 100% efficiency is not possible for
any cycle, therefore it violates Kelvin-Planck’s statement.
Hence,
the correct option is (D).
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