Compute heat transfer in process-change of entropy of air
A mass of 1 kg of air contained in a cylinder at 1.5 MPa, 1000 K, expands in a reversible isothermal process to a volume 10 times larger. Calculate the heat transfer during the process and the change of entropy of the air.
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In a hypothetical nuclear fusion reactor, the fuel is deuterium gas at a temperature of about 9.8 x 108 K. If this gas could be used to operate a Carnot engine with TL = 496°C, what would be the engine's efficiency?
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A mass of 1 kg of air contained in a cylinder at 1.5 MPa, 1000 K, expands in a reversible isothermal process to a volume 10 times larger.
To make ice, a freezer that is a reverse Carnot engine extracts 38 kJ as heat at -10°C during each cycle, with coefficient of performance 6.0. The room temperature is 33.9°C. How much:work per cycle is required to run the freezer?
An air conditioner operating between 93°F and 67°F is rated at 4000 Btu/h cooling capacity. Its coefficient of performance is 27% of that of a Carnot refrigerator operating between the same two temperatures. What horsepower is required of
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