ENTROPY AND SECOND LAW.pptx - ENTROPY AND THE SECOND LAW OF THERMODYNAMICS SECOND LAW OF THERMODYNAMICS The second law of thermodynamics can be stated

ENTROPY AND SECOND LAW.pptx - ENTROPY AND THE SECOND LAW OF...

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ENTROPY AND THE SECOND LAW OF THERMODYNAMICS
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ENGR. LIZA MARIE B. NUEVO,MSEE POLYTECHNIC UNIVERSITY OF THE PHILIPPINES SECOND LAW OF THERMODYNAMICS The second law of thermodynamics can be stated in the following two ways: It is impossible to construct a heat engine that, operating in a cycle, produces no effect other than the input of energy by heat from a reservoir and the performance of an equal amount of work (the Kelvin–Planck statement).
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ENGR. LIZA MARIE B. NUEVO,MSEE POLYTECHNIC UNIVERSITY OF THE PHILIPPINES SECOND LAW OF THERMODYNAMICS The second law of thermodynamics can be stated in the following two ways: It is impossible to construct a cyclical machine whose sole effect is to transfer energy continuously by heat from one object to another object at a higher temperature without the input of energy by work (the Clausius statement).
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ENGR. LIZA MARIE B. NUEVO,MSEE POLYTECHNIC UNIVERSITY OF THE PHILIPPINES CLAUSIUS STATEMENT Energy does not transfer spontaneously by heat from a cold object to a hot object. This direction of energy transfer requires an input of energy to a heat pump, which is often supplied by means of electricity.
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ENGR. LIZA MARIE B. NUEVO,MSEE POLYTECHNIC UNIVERSITY OF THE PHILIPPINES ENTROPY The second law of thermodynamics states that when real (irreversible) processes occur, the degree of disorder in the system plus the surroundings increases.
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