Determine specific entropy change of refrigerant in process
Refrigerant 134a at a pressure of 0.8 MPA and a temperature of 50 C undergoes a process until the pressure is 0.1 MPA and the specific volume is 0.15 m^3/kg. Determine the specific entropy change of the refrigerant during the process.
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Determine the maximum theoretical speed that may be achieved over a distance of 360ft by a car of weight W starting from rest assuming there is no slipping.
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Refrigerant 134a at a pressure of 0.8 MPA and a temperature of 50 C undergoes a process until the pressure is 0.1 MPA and the specific volume is 0.15 m^3/kg.
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What is a simple way to increase the performance and eliminate the problem from part d? Are there any side effects of this change?
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