For each of the cases below, determine if the heat engine satisfies the first law and if it violates the second law of thermodynamics in Q H = 6 kW Q L = 4 kW W = 2 kW Q H = 6 kW Q L = 0 kW W = 6 kW

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For  each of the cases below, determine if the heat engine satisfies the first law and if it violates the second law of thermodynamics in       Q    H    =  6   kW         Q    L    =  4   kW     W  =  2   kW        Q    H    =  6   kW         Q    L    =  0   kW     W  =  6   kW

Janiah Hoffman · Accepted Answer

First law of thermodynamics: First law of thermodynamics represents the law of conservation of energy. According to the first law of thermodynamics, energy cannot be created nor be destroyed; it can only be transferred from one state to another.According to the first law,  δ  Q  =  δ  W        Q    H    −      Q    k    =  WFor the first case:      Q    H    =  6   kW        Q    L    =  4   kW    W  =  2   kWPlug-in the values in equation:  6   kW  −  4   kW  =  W    W  =  2   kWFor the second case:      Q    H    =  6   kW        Q    L    =  0   kW    W  =  6   kWPlug in the equation  6   kW  −  0   kW  =  W    W  =  6   kWIn both cases, the heat engine satisfies the first law of thermodynamics. Since it is impossible to design an engine which can completely convert the heat in to useful work, therefore in the both the case the second law of thermodynamics is violated.

For each of the cases below, determine if the heat engine satisfies the first law and if it violates the second law of thermodynamics in QH=6kW QL=4kW W=2kW QH=6kW QL=0kW W6kW

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