'Pv diagram' diaporamas de présentation

Eco-friendly Refrigerants

Eco-friendly Refrigerants. Dr Alka Bani Agrawal Professor,Mechanical Engg UIT,RGPV. History Of Refrigeration. Refrigeration relates to the cooling of air or liquids, thus providing lower temperature to preserve food, cool beverages, make ice and for many other .

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Chapter 12

Chapter 12. 0. Thermal Properties of Matter. 12 Thermal Properties of Matter. Slide 12-2. Slide 12-3. Slide 12-4. Slide 12-5. Reading Quiz.

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Chapter 17

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Pure Substances

Pure Substances. Physics 313 Professor Lee Carkner Lecture 18. Exercise #17 Isenthalpic. For the initial state P i = 5 MPa, T i = 115 K Extrapolating we get: s 1 = 4.9945 kJ/ K kg and h 1 = 232.3 kJ/kg Isenthalpic process so s f = s i For s f =4.9945 and P f = 1 MPa, what is h f ?

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A. path abc only B. path adc only C. both path abc and path adc

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Cyclic Processes

Cyclic Processes. A cyclic process is one that periodically returns to its initial state. 1. law:. Change of a state function in one cycle is zero. in particular. In a cyclic process heat transferred to a system equals the work done by it.

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Conservation

Conservation. Mechanical work involves a force acting through a distance. Work can involve a change in internal energy. Temperature may change Temperature did not cause the work. Work Expanded. Work is an energy transfer that is not due to a temperature difference. .

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Atomic/molecular collisions and pressure

Atomic/molecular collisions and pressure. The kinetic-molecular theory relates pressure to elastic collisions between individual particles and the walls of the container.

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