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!
(a) Ammonia gas is being absorbed by water in a wetted-wall column. At one level of the column, the following data applies: gas-phase mass transfer coefficient 5.22 × 10-9 kmol m-2 s-1 Pa-1 liquid-phase mass transfer coefficient 3.88 × 10-5 m s-1 Henry's constant 0.955 kPa (kmol m-3)-1. Estimate the overall mass transfer coefficient KL.
(b) What is the ratio of the individual mass transfer resistances in Question 2 (a)
(c) Use the following additional information to find the mass transfer flux in the column: mole fraction of ammonia in liquid* 1.351 × 10-3 mole fraction of ammonia in gas* 0.065 total pressure of system 1.013 bar mole mass of ammonia 17 *Note: these values will need to be converted to concentrations in kmol m-3.
(d) What is the partial pressure of the ammonia gas at the gas/liquid interface?
(e) What is the molar concentration of the ammonia in the liquid at the interface?
What tower diameter should be used for optimum conditions of minimum total cost per year?
Wet steam at 200 °C with 80% moisture is heated by removing 600 kJ/kg of heat. Determine the final state (pressure and temperature and quality, if a two-phase system) if cooling is at constant pressure.
A substance, A2B, has the composition by mass of 60% A and 40% B. What is the composition of AB2 by mass?
How much of this information could be obtained from laboratory or pilot-plant tests?
She quickly puts together a sketch (see below) for a process that produces 220 kW of heat, 1700 kW of work, and delivers the exhaust gases as a single stream at 1 bar. The heat will be used to produce saturated steam at 1 atm by boiling the saturat..
What were the materials used in the implant? What were the advantages of the materials used and what was the surface texture of these implants? How did this contribute to the biocompatibility of the implant?
One of the major categories of assistive devices is alternative and augmentative communication devices. Describe the electronic data processing steps needed for text-to-speech conversion. How have the technological advances in personal computing m..
Determine the primary current, primary voltage, and power factor.
The constant losses from a no-load run as a motor are given to be 220 W, of which 70 W represents friction and wind age losses. Calculate the efficiency of the induction generator.
Piston arrangement: compressing air, A piston arrangement has been developed to compress air adiabatically from 360C
The synchronous speed of a wound-rotor induction motor is 900 r/min. Under a blocked-rotor condition, the input power to the motor is 45 kW at 193.6 A.
Calculate the internal energy change for each of the following. a. One hundred (100.) joules of work are required to compress a gas. At the same time, the gas releases 23 J of heat
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