tutorial1 - 1 Indian Institute of Technology Kharagpur...

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Unformatted text preview: 1 Indian Institute of Technology Kharagpur Department of Mechanical Engineering Thermodynamics ME22002 Tutorial 1 (Pure Substances) 1. A 1.8-m 3 rigid tank contains steam at 220°C. One-third of the volume is in the liquid phase and the rest is in the vapor form. Determine (a) the pressure of the steam, (b) the quality of the saturated mixture, and (c) the density of the mixture. (Ans-2320 kPa, 0.0269, 287.8 kg/m 3 ) 2. A piston–cylinder device contains 0.85 kg of refrigerant-134a at -10°C. The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. The local atmospheric pressure is 88 kPa. Now, heat is transferred to refrigerant- 134a until the temperature is 15°C. Determine (a) the final pressure, (b) the change in the volume of the cylinder, and (c) the change in the enthalpy of the refrigerant-134a. (Ans- 90.4 kPa, 0.0205m 3 , 17.4 kJ) 3. A person cooks a meal in a 30-cm-diameter pot that is covered with a well-fitting lid and lets the food cool to the room temperature of 20°C. The total mass of the food and the pot is 8 kg. Now the person cool to the room temperature of 20°C....
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This note was uploaded on 05/03/2011 for the course ME 101 taught by Professor Mkdas during the Spring '11 term at Indian Institute of Technology, Kharagpur.

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tutorial1 - 1 Indian Institute of Technology Kharagpur...

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