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Show that a PI feedback controller is undesirable because it results in a differentiator in the forward path. Discuss the step response of the closedloop system.
For this system, Henry's law holds good and y = 1.75 x, where y is the mole fraction of acetone in the gas in equilibrium with a mole fraction x in the liquid. How many overall transfer units are required?
A strap, instrumented to measure stretch, is worn around the chest to detect respiration whilst a subject is at-rest. The resulting signal is contaminated by electrical noise from the mains at 50 Hz with a similar amplitude to the respiration sign..
You wish to prepare 100 mL (total volume) of a buffer solution that is 0.025 M in carbonic acid, pH 7.25. You have solid H2CO3 and solid NaHCO3. Calculate how many grams of H2CO3 and HCO3- you need to weigh out to prepare this solution.
In a project manager simulation were you made different language versions in French, German, and Japanese of a software product named LullSIM with an internal team. In this simulation you were not able to choose the option of hiring contractors, g..
Overall heat transfer coefficient is 3000 W m2 K. Calculate the heating surface required in calandra in m2 and the economy of the evaporator.
This solution is then reacted with an acidic solution containing periodate ion; the products are the permanganate and iodate ions. Write balanced chemical equations for both these steps.
The equilibrium constant should vary with temperature according to the relation Kp = ae-b/T use the results of part (b) to determine the values of a and b by a graphical curve-fitting procedure. [Suggestion: Use the spreadsheet program from part (..
Calculate the explicit solution of the kinetic differential equation of the reaction 2X(l)X(2) and show that they have all the properties mentioned above. (Think about the impracticality of carrying through the same procedure for a reaction with, ..
By using the mesh-current method, determine the voltage across the 1-A current source of the circuit of Figure P2.2.7, and verify by nodal analysis.
If the gases leave the tower at 6 atm, 25 °C, and are expanded to, say, 1.5 atm, calculate the turbine exit gas temperatures without preheat, and if the gases are preheated to 400 °C with the reactor off-gas. Also, estimate the power recovered fro..
If the bore of the machine is 42 cm in diameter, its axial length is 28 cm, and each pole subtends an angle of 60°, determine the air-gap flux density. (Note that the number of parallel paths is equal to the number of poles for lap windings.)
two important allotropes of elemental phosphorus are white phosphorus and red phosphorus a. why should gloves be worn
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