Engineering, 02.03.2020 23:02 shannongray23402

The irreversible liquid phase acid catalyzed reaction A > C (catalyzed by H2SO4) is carried out in a semi-batch reactor containing H2SO4. The initial volume of a 3 M H2SO4 solution in the reactor is 100 L (no A is present initially). Species A is fed at a constant rate of 10 mol/min. The volumetric flow rate of liquid entering the semi-batch reactor is 5 L/min. The specific reaction rate is 0.05 min-1. The reaction is first order in A and zero-order in catalyst concentration.

(a) Obtain an analytical solution for moles of A (NA) and concentration of A (cA) as a function of time. You must solve this by hand; do not use computer software/resources for this problem. Leave the answer in symbolic form; don’t substitute parameter values. Show your work to obtain full credit.

(b) What is concentration of A after 30 min?

(c) How many moles of A will there be in a tank after long times (t -> infinity)? Explain why the number of moles remains virtually constant at long times.

(d) For t = 0 to 300 min, provide a computer generated plot of cA vs. t.

Answers: 1

Show answers

Another question on Engineering

Engineering, 03.07.2019 14:10

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Answers: 3

Answer

Engineering, 04.07.2019 18:10

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Answers: 2

Answer

Engineering, 04.07.2019 18:10

At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Answers: 2

Answer

You know the right answer?

The irreversible liquid phase acid catalyzed reaction A > C (catalyzed by H2SO4) is carried out i...

Questions