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Dry silica gel is used to dehumidify a moist air stream. One hundred pounds per minute of moist air contains one pound of water vapor. This steam flows through a dehumidifier. Dry silica gel flows countercurrent to the air. The exiting air stream contains 10-3 pounds of water per pound of dry air, and the water in the silica gel is in equilibrium with the entering air (Not the exiting air!). The equilibrium relationship that applies to this process is q = 0.0375*p0.65, where q is the mass of water per mass of silica gel and p is the partial pressure of water in the entering air in mm Hg.
What is the mass of water removed per minute?
At Chernobyl in 1986, hydrogen was produced by the reaction of superheated steam with the graphite reactor core: C(s)+H2O(g) yields CO(g)+H2(g) It was not possible to prevent a chemical explosion at Chernobyl
There are four stable isotopes of iron with mass numbers 54, 56, 57, and 58. There are also two radioactive isotopes: iron-53 and iron- 59. Predict modes of decay for these two isotopes. (See Table 18.2.).
Thomas Industries and Washburn Corporation supply three firms (Zrox, Hewes, Rockwright) with customized shelving for its offices. They both order shelving from the same two manufacturers, Arnold Manufacturers and Supershelf, Inc. Because of long s..
Low temperature reservoir at reservoir at a rate of 300 j/s . what is the temperature of the high temperature reservoir.
Comment on whether the device is operating in the depletion mode or in the enhancement mode.
determine the ratio of starting torque to full-load torque.
Draw circuit diagrams and show polarity markings.
If the annular space is pressurized with nitrogen at 5 atm, estimate the convection heat transfer rate per unit length of the tubes.
Solid NH4NO3 (ammonium nitrate) decomposes on heating to 400°C, forming N2O gas and water vapor, H2O. (a)Write a balanced chemical equation
One mol of methanol vapor is cooled under constant pressure in a closed system by removing 25000 J of heat. Initially, the system is at 2 bar, 200 °C.
Using the data below, calculate graphically the number of theoretical plates needed using an L/D of 1.6 times the minimum Reflux ratio Rm.
The feed contains 10 mol% acetone. Acetone of at least 95 mol% purity is wanted, and the aqueous effluent must not contain more than 1 mol% acetone. The feed will be a saturated liquid. Estimate the number of ideal stages required.
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