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Question: The fired heater example in Figure had a hard constraint.
(a) Sketch the performance function for this situation, including the performance when violations occur, on the figure.
(b) Assume that the distribution of the temperature would have 0.005 fraction of its operation exceeding the limit of 864°C and that each time the limit is exceeded, the plant incurs a cost of $1,000 to restart the equipment. Can you calculate the total cost per year for exceeding the limit?
(c) Make any additional assumptions and complete the calculation.
The thermal decomposition of phosphate into phosphorous and molecular hydrogen is a first order reaction : 4PH3(g) -----> P(g) + 6H2(g), The half life of the reaction is 35.0 s at 680*c
If the excess of Cr3+ is discharged into a waste stream that is saturated with atmospheric oxygen at the pH of 6.0, would there be a significant conversion of Cr3+ to dichromate at equilibrium? Present numerical results to justify your conclusion.
Calculate the energy in kJ/mol needed to remove the electron from n=1 in a mole of hydrogen atoms. what is this energy called?
In the presence of large excesses of I^-1 ion, the following set of data is obtained. What is the average rate of disappearance of H2O2(aq) in M/s in the first 45.0 seconds of the reaction if 1.00L of H2O2 reacts at 25C and 1.00atm pressure?
When a 4.25-g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 degree C to 16.9 degree C.
Problem- Which of the following compounds exhibit at least one bond angle that is approximately 120o? Select "true" if the molecule has a bond angle of approximately 120o. Otherwise, select "false".
Given that the dominant isotope mass for copper metal is 62.94 amu (g/mol) how many atoms of copper metal are in a pure copper coin that weighs 2.15g
Design a small, laboratory-scale, reversed Brayton cycle air conditioning system that can serve as an experimental apparatus for a junior or senior mechanical engineering laboratory course.
Perform titration at least three times to get an average number, standard deviation and 90% confidence interval. Check your answer against the computer. In your discussion explain why your results may differ from actual value.
Assuming that the outdoor formaldehyde concentration is neglible, calculate the steady-state concentration in the air inside the room. Does the concentration exceed the concentration (100 ppbv) considered to be the level of concern?
According to the solubility rule, silver will precipitate with SO42- but doing my lab i found no precipitation when i added AgNO3
Calculate the entropy change when 1.86 g of H2 reacts with O2 according to the reaction 2H2(g) + O2(g) ! 2H2O(l) at 298 K and 1 atm pressure.
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