Describe an imaginary process that violates both the first and the second laws of thermodynamics.

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ruinsraidy4 · Accepted Answer

Assume that there is a device which takes heat from the reservoir and produce work.The expression for the first law of thermodynamics, upon the energy balancer of the system  Q  =      W          net      It only deals with the energy balance and not give the information about the possibility of the process. Now assume that there is a heat transfer of 16 kJ of the heat to the air and obtain 21 kJ of the work, which caused due to the expanding of the gas and moving a piston  Q  =  W    16   kJ  ≠  21   kJIt indicates that the cyclic process is violating the first law of thermodynamicsNow according to the second law of thermodynamics  η  =      W    Q    ×  100    =      21    16    ×  100    =  131.25  %As the efficiency can not be more than 100%.It is impossible to get 131.25% efficiencyThus this process violates the second law of thermodynamics.

Describe an imaginary process that violates both the first and the second laws of thermodynamics.

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