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Chemical Reaction Engineering

Chemical Reaction Engineering
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

43833
43834
43832
43835

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Chemical Reaction Engineering
Specific rate constant for a second order reaction

Varies with temperature
Both B and C
Is independent of temperature
Depends on the nature of the reactants

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Chemical Reaction Engineering
At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R?

2.24
2.5
1.6
2

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Chemical Reaction Engineering
The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is

3
1
2

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Chemical Reaction Engineering
Reaction rate of a first order reaction, which is half completed in 23 minutes will be

0.05 min⁻¹
0.03 hr⁻¹
0.03 min⁻¹
0.03 sec⁻¹

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Chemical Reaction Engineering
For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by

A ramp function
A step function
None of these
A dirac delta function

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