Assignment BMCG 2713 SET A Questions

# Assignment BMCG 2713 SET A Questions - 50 BMCG 2713...

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BMCG 2713 Thermodynamics I Assignment (10%) CLO 3: “Solve the thermodynamics processes relating to the ideal gas and pure substance. (C3, CTPS3)” 4-5 Group member (Please state your name, matric no, lecturer name and section) Due date: 21 November 2016 before 1.00 pm 1. Consider a piston device shown in Figure A . The dimensions of D 1 and D 2 are given as 10 cm and 4 cm , respectively. Chamber 1 contains 1 kg helium, chamber 2 is filled with condensing water vapor and chamber 3 is evacuated. The entire assembly is placed in an environment whose temperature is 200 °C. a) Show the force balance for forces acting on the piston. Draw schematic diagram to show these forces. (3 marks) b) Find pressure in chamber 1, P 1 (4 marks) c) Determine the volume in chamber 1, V 1 (3 marks) 50

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Figure A: Piston cylinder 2. 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 contains saturated vapor only. Determine: a)

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