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A. More than
B. Less than
C. Equal to
D. Either B. or C.
Related Mcqs:
- The rate expression for a heterogeneous catalytic reaction is given by, – rA = K.KA PA(1 + KA.PA + KR.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) ?
- A. E B. E + ΔHA C. E + ΔHA – ΔHR) D. ΔHA + ΔHR...
- If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst___________________?
- A. Porosity is very important B. Porosity is of less importance C. Internal surface area is utilised efficiently D. None of these...
- For the reaction as shown in the bellow figure, the rate of formation of Z is 0.2 gm mole/litre.hr. What is the rate of disappearance of X in gm mole/litre.hr ?
- A. 0.4 B. 0.1 C. 0.2 D. None of these...
- For a tubular flow reactor with uniform concentration and temperature, the independent variable is___________________?
- A. Time B. Length C. Diameter D. None of these...
- For the non catalytic reaction of particles with surrounding fluid, the same needed to achieve the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the ________________ is the controlling resistance?
- A. Film diffusion B. Diffusion through ash layer C. Chemical reaction D. Either A., B. or C....
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