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Commercial cold packs and hot packs are available for treating athletic injuries. Both types contain a pouch of water and a dry chemical. When the pack is struck, the pouch of water breaks, dissolving the chemical, and the solution becomes either hot or cold. Many hot packs use magnesium sulfate, and many cold packs use ammonium nitrate. Write reactions to show how these strong electrolytes break apart when they dissolve in water.
Dependence of measured energy on temperature for a pyrometer - Plot the volumetric flow rate vs. height
The resulting products are cooled and passed over a medium-temperature shift catalyst that gives an outlet composition corresponding to equilibrium at 350 °C.
Devise a control system for this reactor, and draw up a preliminary piping and instrument diagram. The following points need to be considered:
QUESTION - 1 . The rate of a liquid phase reaction of the type ,A+B --àproducts is found to be independent of concentration of A and B and equal to 1 KMOL/m3 ( min) at 300 ok
Discuss the applicability of each model - Does it differ based on the interactions you would expect for each model. Can you conclude that one of the models is 'better' than the others from your graphs/analysis in Problems 3.1-2?
Reconsider the Methanol Water Distillation. If the feed stream contains 60 mol % methanol, reevaluate reflux ratio, number of stages required, and the column diameter.
1. What is the principle of Lime Soda process? Give their functions with chemical reactions. 2. Write notes on Reserve osmosis and Ultra filtration.
Calculate the diffusion flux at 1027(C (1300 K) for the same concentration gradient and assuming an activation energy for diffusion of 125,000 J/mol.
Which of the following would you expect to be elastomers and which thermosetting polymers at room temperature? Justify each choice.
Ethane (C2H6) can be dehydrogenated to ethylene (C2H4), which can be dehydrogenated further to acetylene (C2H2). A reactor is fed with ethane and steam at a 1:1 mole ratio (The steam simply acts as a diluent). If the reactor runs at 1 atm and the rea..
Mass of Air Required for Combustion of Fuel. A coal fired boiler uses fuel having the following analysis by mass:
A liquid mixture consisting of 100 kmol of 60 mol% benzene, 25 mol% toluene, and 15 mol% o-xylene is flashed at 1 atm and 100°C. (a) Compute the amounts of liquid and vapor products and their composition.
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