Questions from Thermal Fluid Science


Q: A piston–cylinder device contains 0.005 m3 of liquid

A piston–cylinder device contains 0.005 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 600 kPa. Heat is transferred at constant pressure until the temperature reaches...

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Q: Reconsider Prob. 4–50. Using appropriate software, investigate

Reconsider Prob. 4–50. Using appropriate software, investigate the effect of pressure on the total mass of water in the tank. Let the pressure vary from 0.1 MPa to 1 MPa. Plot the to...

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Q: A 5-ft3 rigid tank contains a saturated mixture of refrigerant

A 5-ft3 rigid tank contains a saturated mixture of refrigerant-134a at 50 psia. If the saturated liquid occupies 20 percent of the volume, determine the quality and the total mass of the refrigerant...

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Q: Superheated water vapor at 180 psia and 500°F is allowed

Superheated water vapor at 180 psia and 500°F is allowed to cool at constant volume until the temperature drops to 250°F. At the final state, determine (a) the pressure, (b) the quality, and (c) the e...

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Q: Reconsider Prob. 4–53E. Using appropriate software, investigate

Reconsider Prob. 4–53E. Using appropriate software, investigate the effect of initial pressure on the quality of water at the final state. Let the pressure vary from 100 psia to 300 psia. Plot the qua...

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Q: One kilogram of water fills a 150-L rigid container at

One kilogram of water fills a 150-L rigid container at an initial pressure of 2 MPa. The container is then cooled to 40°C. Determine the initial temperature and the final pressure of the wa...

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Q: 10 kg of R-134a fill a 0.7-

10 kg of R-134a fill a 0.7-m3 weighted piston–cylinder device at a pressure of 200 kPa. The container is now heated until the temperature is 30°C. Determine the initial temperature and final volume of...

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Q: A piston–cylinder device contains 0.6 kg of steam

A piston–cylinder device contains 0.6 kg of steam at 300°C and 0.5 MPa. Steam is cooled at constant pressure until one-half of the mass condenses. (a) Show the process on a T-v diagram. (b) Find the f...

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Q: A piston–cylinder device initially contains 1.4 kg saturated

A piston–cylinder device initially contains 1.4 kg saturated liquid water at 200°C. Now heat is transferred to the water until the volume quadruples and the cylinder conta...

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Q: The reactive force developed by a jet engine to push an airplane

The reactive force developed by a jet engine to push an airplane forward is called thrust, and the thrust developed by the engine of a Boeing 777 is about 85,000 lbf. Express this thrust in N and kgf....

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