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Question- Air at a dry bulb temperature of 20 C and relative humidity of 80% is to be heated and humidified to 40 C and 40% relative humidity. The following options are available for this objective
(a) By passing air through a heated water spray air washer (b) by preheating sensibly, and then passing through a water spray washer with recirculated water untill relative humidity rises to 95% and then again heating sensibly to the final required state. Determine for (a) and (b) the total heating required, the makeup water required in water spray air washer, and the humidifying efficiency of the re-circulated spray water.
Any help is greatly appreciated!
The use of the British thermal unit (Btu) is common in much engineering work. A Btu is the amount of heat required to raise the temperature of 1 lb of water by 1 degree Farenheit.
A certain reaction has an activation energy of 61.0 kJ/mol and a frequency factor of A1 = 2.00×10^12M^-1s^-1. What is the rate constant, k, of this reaction at 29.0 degrees celsius
Subsequent to blanking with the pure solvent the absorbance of the solution is 0.543. Explain what is the concentration of the solution in the cuvette
The following set of data was obtained by the method of initial rates for the reaction: S2O8^2- (aq) + 3 I- (aq) ==> 2 SO4^2- (aq) + I3- (aq) What is the initial rate when S2O8^2- is 0.15M
If an electric car is capable of going 220. km on a single charge, how many charges will it need to travel from Boston, Massachusetts to Miami, Florida, a distance of 1486 mi, assuming that the trip begins with a full charge?
Calculate the atomic mass of zinc from the relative peak intensities in the following spectrum. peak intensity for zinc 64 = 100 peak intensity for zinc 66 = 57.4 peak intensity for zinc 68 = 38.6
If you have 15mL of 0.1 M NaC2H3O2, and the pH is 7.0. What would the Kb be for this reacton
Nitrogen gas (N2) reacts with hydrogen gas (H2) to form ammonia (NH3). At 200°C in a closed container, 1.04 atm of nitrogen gas is mixed with 2.03 atm of hydrogen gas. At equilibrium the total pressure is 2.03 atm. Calculate the Kp value for this ..
A 50.0 mL sample containing Cd2 and Mn2 was treated with 69.6 mL of 0.0600 M EDTA. Titration of the excess unreacted EDTA required 11.9 mL of 0.0220 M Ca2
a homogeneous powder derived from a sample of ayres rock in australia is known to contain 33.31 fe. the titration
What would happen to the A450 value for a smaple which include : 1mL of 0.0025M Fe(NO3)3 + 1mL of 0.0025M KSCN + 5.0mL of 0.1M HNO3 , if you accidentally added 5 drops of disodium hydrogen phosphate
Sufficient of a monoprotic acid is dissolved in water to produce a 0.0189 M solution. The ph of the resulting solution is 2.58. Compute the Ka for the acid.
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