The exit age distribution of fluid leaving a vessel is used to know the__________________?

Related Mcqs:

1. The exit age distribution of a fluid leaving a vessel (denoted by E) is used to study the extent of non-ideal flow in the vessel. The value of ∫∞ 0 E.dt is____________________?

   A. 0 B. 1 C. ∞ D. √2π...

2. The exit age distribution curve E(t) for an ideal CSTR with the average residence time, η, is given by__________________?

   A. e-t/η B. e-t/η/η C. 1 – e-t/η D. 1 – (e-t/η/η)...

3. For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by __________________?

   A. A Dirac delta function B. A step function C. A ramp function D. None of the above...

4. The reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m3is fed to the reactor at the rate of 0.01 m3 /s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k) is (Data: Heat of reaction at 298 K = – 50000 kJ/ kmole of A reacted Heat capacities CPA = CPB = 100kJ/kmole. K (may be assumed to be independent of temperature)) ?

   A. 400 B. 500 C. 600 D. 1000...

5. In a/an _____________ vessel, the fluid enters and leaves following plug flow?

   A. Open B. Closed C. Open-closed D. Close-opened...

6. The conversion in a mixed reactor/accomplishing a reaction A → 3R is 50% when gaseous reactant ‘A’ is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is _______________ second?

   A. 0.5 B. 1 C. 2 D. 3...

7. The ‘E’ curve for a non-ideal reactor defines the fraction of fluid having age between t and t + dt _____________________?

   A. At the inlet B. At the outlet C. In the reactor D. Averaged over the inlet and outlet...

8. The conversion for a first order liquid phase reaction. A → B in a CSTR is 50%. If another CSTR of the same volume is connected in series, then the % conversion at the exit of the second reactor will be_____________________?

   A. 60 B. 75 C. 90 D. 100...

9. Pure A in gas phase enters a reactor 50% of this A is converted to B through the reaction, A → 3B. Mole fraction of A in the exit stream is______________________?

   A. 1/2 B. 1/3 C. 1/4 D. 1/5...

10. The gas phase reaction 2A ⇌ B is carried out in an isothermal plug flow reactor. The feed consists of 80 mole % A and 20 mole % inerts. If the conversion of A at the reactor exit is 50%, then CA/CA0 at the outlet of the reactor is _______________________?

    A. 2/3 B. 5/8 C. 1/3 D. 3/8...