Unformatted text preview: The cooling water enters at 5°C and exits at 10°C. Given: ( 29 ( 29 mL g juice apple K kg kJ juice apple C v 04 . 1 / ; * 7 . 2 . = = ρ a) How long will it take the apple juice to reach 12°C? (5 pts) b) At what flowrate should cooling water be supplied? (5 pts) Assume the cooling water is turned on the moment the apple juice reaches 12°C. 3. A horizontal frictionless piston-and-cylinder system is subjected to 1.013 bar external pressure. The piston and cylinder do not conduct heat, but heat can be added to the steam by a heating coil. The steam has an initial temperature of 300°C and enough heat is added to increase the temperature by 200°C. Determine the work, heat and entropy of generation for this process. (8 pts)...
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- Spring '11
- Heat, 8 pts, 10°C, 7 pts, 15°C, 10 J