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150 mol/s of cyclohexane enter a heat exchanger at 25?C and 3 atm and leaves as a vapor at 125?C. The normal boiling point of cyclohexane is 80.7?C; at the normal boiling point, the heat of vaporization is 30.1 kJ/mol. The liquid-phase heat capacity is 156 J/mol K, and the vapor phase heat capacity is 105.3 J/mol K. What is the heat duty of the heat exchanger? You can assume that the heat exchanger operates at constant pressure. The density of liquid cyclohexane is about 780 , and the molecular weight of cyclohexane is 84.2.
a 9 m3 tank has two sections separated by a membrane both of which contain nitrogen gas. the nitrogen in section a has
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air flows in a round pipe at a rate of 0.015 lbmsec. the air enters the pipe at a temperature 76.8 of and a pressure
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Write a MATLAB program that takes an input of the stress state in 3D. The program should Create the stress tensor. Calculate the principal normal and shear stresses by solving the Eigen value problem.
A rigid tank with a volume of 1.8 m3 contains 15 kg of saturated liquid-vapor mixture of water at 2 bar. Now the water is slowly heated. Determine the temperature at which the liquid in the tank is completely vaporized. Show the process on a T-v diag..
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