Engineering Answers

a) We are planning to operate a mixed flow reactor to convert A into R. This is a liquid phase reaction, with the stoichiometryA→R. The rate of reaction is given below. What size of mixed flow reactor is needed to achieve 75% conversion of a feed stream of 1000 moles of A per hour? CA,mol/l. 0.1 0.2 0.3 04 0.5 0.6 0.7 0.8 1 1.3 2. -rA,mol/(l.min). 0.1 0.3 0.5 0.6 0.5 0.25 0.1 0.06 0.05 0.045 0.042

b) The first order reversible liquid phase reaction A⬌R. takes place in batch reactor. After 8 minutes, conversion of A is 33.3% while equilibrium conversion is 66.7%. Find the rate equation to represent this reaction. Take CAo= 0:5 mol/l and CRo=0.

2. a) Find the overall order of the following irreversible reaction: 2H₂ +2NO→N₂ + 2H₂0, from the following constant volume data (i.e data collected in a constant volume bomb) obtained by using equimolar quantities of hydrogen and nitric acid, Take T=296K. Half life(seconds) 265 186 115 104 67 Total Pressure(mm Hg) 200 240 280 320 360

c) Write the differences for integral and differential method

b) Nitrous oxide decomposes according to the second order rate equation 2N₂0→2N₂ +0₂ The rate constant is 977 cm³/ (mol. s) at 895°C. Calculate the fraction decomposed at 1s, 10s, and at 10 min in a constant volume batch reactor. The initial pressure (all N₂O) is 1 atm.

a) For a gas reaction at 400K, the rate is reported as -dPA/dt= 3.66 PA^2. What is the value of rate constant for this reaction if the rate equation is measured in terms of mol/ (l. h)?

Replace the three forces acting on the guy wires by a single, equivalent force acting on the flagpole. Use T₁ = 200 lb, T₂ = 400 lb, and T₃ = 350 lb.

Draw a circuit:

2 transistors (S1 & S2) to build an equivalent AND gate. Indicate output using LED.

Under the conditions of voltages, currents, resistances, inductances and capacitances. The complex power is conserved in the circuit?

11. Nowadays, most flap valves are made of HDPE. What are the advantages of using HDPE when compared with cast iron?