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Differential Energy Balance
In the batch preparation of an aqueous solution, the water is first heated to 80 °C in a jacketed, agitated vessel; 1000 Imp. gal. (4545 kg) is heated from 15 °C. If the jacket area is 300 ft2 (27.9 m2) and the overall heat transfer coefficient can be taken as 50 Btu ft-2 h-1 °F-1 (285 W m-2 K-1), estimate the heating time. Steam is supplied at 25 psig (2.7 bar).
Estimate the feed flow rates of glycine and guaiacol that would be needed to produce 100 kg/day of the API.
Aniline is produced by the hydrogenation of nitrobenzene. The reaction takes place in a fluidized bed reactor operating at 270 °C and 20 bar. The excess heat of reaction is removed by a heat transfer fluid passing through tubes in the fluidized be..
A man comes home on a summer day and finds that his house is at 35oC. He turns on the air conditioner. In 30 minutes the entire house is at 22oC. If the COP of the air conditioner is 2.8, calculate the powerthat must be supplied to it. Assume the..
One type of commercial smoke detector contains a minute amount of radioactive americium-241 (241Am), which decays by -particle production.
Calculate the heat when 100.0 mL of 0.500 M HCl is mixed with 300.0 mL of 0.100 M Ba(OH)2. Assuming that the temperature of both solutions was initially 25.0C and that the final mixture has a mass of 400.0 g and a specific heat capacity of 4.18 J..
If the origin, o, is located at the wing tip and the leading & trailing edge curve is given above, find the constant c at the wing root and then calculate the chord of the wing at position 2 and position 3 as indicated in figure 1. (Marks Breakdow..
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
A 500-hp, wye-connected, wound-rotor induction motor, when operated at rated voltage and frequency, develops its rated full-load output at a slip of 0.02; maximum torque of 2 times the full-load torque at a slip of 0.06, with a referred rotor curr..
Construct a table that summarizes the Level 0 information that you have, and information that you might need to obtain. Comment on choices that might need to be reconsidered and why. Comment on what you will do about currently missing information.
Design a decanter for this duty, for a feed rate of 3500 kg/h. Concentrate on the separation of the water and aniline. The densities of water-aniline solutions are given in Appendix F, Problem F.8, available in the online material at booksite.Else..
Compute the effective armature ac resistance in per unit and in ohms per phase at 25°C.
With the number of poles decided, find the speed in r/min at which the motor-generator set will operate.
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