Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Problem 9.4:
An insulated cylinder is divided by a partition into two compartments.
Compartment A contains 0.2 mol of pure methane at 50 °C, 1 bar. Compartment B contains 0.8 mol of a methane-ethane mixture at 100 °C, 1 bar with ymethane = 0.5. The partition is removed and the system reaches equilibrium. a) What is the composition of the final mixture? b) What is the temperature and pressure at the end of the process? c) Calculate the entropy generation. d) What is the change in the total Gibbs energy of the system? e) How much work is needed to separate the final mixture into A and B at the conditions before mixing? Assume that the temperature of the surroundings is 20 °C. f) Which of the above answer would change (and by how much), if both compartments contained methane? All other conditions are the same. Additional data: The ideal-gas CP 's of the pure components are: ethane: 10.3 R; methane: 6.2 R; where R is the ideal-gas constant.
Determine the motor current and speed when the diverter-circuit resistance is made equal to the series-field resistance. Neglect saturation and the voltage drops across the series- field resistance as well as the armature resistance.
After the pH electrode is moved to an unknown buffer solution, the reading of the voltmeter is decreased by 25%. Calculate the pH of the unknown buffer solution.
No-load test: line-to-line voltage 400 V, input power 1770 W, input current 18.5 A, and friction and wind age loss 600 W
What is the melting point at standard conditions for ammonia? Boling point is given -33.4C.
how the interconnections and appropriate polarity markings.
A 500-hp, wye-connected, wound-rotor induction motor, when operated at rated voltage and frequency, develops its rated full-load output at a slip of 0.02; maximum torque of 2 times the full-load torque at a slip of 0.06, with a referred rotor curr..
Momentum fluxes for creeping flow into a slot (Fig. 3.B-7). An incompressible Newtonian liquid is flowing very slowly into a thin slot of thickness 2B (in the y direction) and width W (in the z direction)
Comment on whether this motor is an induction motor or a synchronous motor.
Determine the synchronous speed in revolutions per minute and the useful torque in new ton meters of a 200-hp, 60-Hz, six-pole synchronous motor operating at its rated full load (1 hp ≅ 746 W).
Draw and completely label a flowsheet of the process (use 100 kg/min of ore as a basis). Calculate the rate of Fe2O3 production (kg/min) in the outlet stream, and the total molar flow and composition of the outlet gas stream.
question 1a discuss in details on five types of health effects related to exposure to hazardous substances encountered
Ac measurements with constant voltage amplitude reveal that the total core loss of a certain magnetic circuit is 10 W at f = 50 Hz, and 13 W at f = 60 Hz. Find the total core loss if the frequency is increased to 400 Hz.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd