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1. Mass transfer coefficients can be of either local or overall type.
a. Explain carefully what the local and overall mass transfer coefficients represent.
b. How does the concentration gradient for the molar transfer rate differ when expressing the transfer in overall and local transfer coefficients respectively?
2. a. Explain the problems of flooding and channeling in packed tower
b. Explain the construction and working of sieve tray, bubble cap tray and counterflow tray
3. Explain the differences between overall, Murphree and point tray efficiency.
The over all diffinition of stripping
ACTIVITY 1 INVESTIGATION OF THE STORE Investigate the store of any one of the laboratories in your study centre and write a report in approximately 500 words. Procedure
INTRODUCTION : Earlier in this course you have read about the requirements of laboratories. You also know that these requirements can be for consumable and non consumable nature
Proximity Printing The proximity exposure method is same to contact printing except that a small gap, 10 to 25 microns wide, is maintained among the wafer and the mask during e
What significance the angle of repose holds in the chemical industry, Explain? Angle of repose is a property of particulate solids. A conical pile is formed when a bulk solid i
A copper pipe carrying steam at 1 atm and 100 °C has internal and external radii of 20 and 25 mm, respectively, and thermal conductivity 350 W/m K. With the inside wall at 100 °C a
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is their any connection
scanning electron microscope
A contaminated soil contains 100 mg metals/kg soil (all metals are readily condensable), 50,000 mg S/kg soil, 1,000 mg F/kg soil, 980 mg/Kg of VOCs and 40,000 mg Cl/kg soil and is
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