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Chemical Reaction Engineering

Chemical Reaction Engineering
Equilibrium of a chemical reaction as viewed by kinetics is a __________ state.

Dynamic unsteady
Dynamic steady
None of these
Static steady

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Chemical Reaction Engineering
A catalyst in a chemical reaction

All of these
Increases the frequency of collisions of reacting species
Alters the reaction mechanism
Decreases the activation energy

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Chemical Reaction Engineering
For the reversible reaction A ⇋ 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium?

0.338
0.637
0.253
0.152

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Chemical Reaction Engineering
The effectiveness factor for large value of Thiele modulus (L√(K/D1)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm²/second)

L√(K/D1)
∞
1/(L√(K/D1))
1

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Chemical Reaction Engineering
A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant)

None of these
Independent of temperature
∝ CA
∝ 1/CA

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Chemical Reaction Engineering
In an exothermic reaction, the energy of the reacting substances as compared to that of products is

Either A or B, depends on order of reaction
Less
More
Same

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