Violations by PMM2 - Thermodynamics
Q. PMM2 is the machine which violates ___________- Published on 21 Aug 15a. Kelvin-Planck statement
b. Clausius statement
c. both a. and b.
d. none of the above
ANSWER: both a. and b.
PMM2 (Perpetual Motion Machine of the Second Kind) is a hypothetical machine which violates the second law of thermodynamics. Kelvin-Planck as well as Clausius statement both represents the second law of thermodynamics. The Kelvin-Planck statement is related to heat engine whereas the Clausius statement is related to heat pump.
If a machine violates one of the two statements then the other statement is always violated. Therefore, PMM2 is the machine which violates both Kelvin-Planck as well as Clausius statement of second law of thermodynamics.
