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.Management Sciences
Category: Chemical Reaction
The heat of reaction__________________?
A. Depends on the pressure only
B. Depends on the mechanism of reaction only
C. Depends on both pressure and mechanism of reaction
D. Is independent of the mechanism of reaction
Equilibrium of a chemical reaction as viewed by kinetics is a ______________ state?
A. Dynamic steady
B. Static steady
C. Dynamic unsteady
D. None of these
With decrease in temperature, the equilibrium conversion of a reversible endothermic reaction_________________?
A. Decreases
B. Increases
C. Remain unaffected
D. Increases linearly with temperature
A catalyst in a chemical reaction____________________?
A. Decreases the activation energy
B. Alters the reaction mechanism
C. Increases the frequency of collisions of reacting species
D. All A., B. and C.
If the rate of a chemical reaction becomes slower at a given temperature, then the__________________?
A. Initial concentration of the reactants remains constant
B. Free energy of activation is lower
C. Entropy changes
D. Free energy of activation is higher
In case of _____________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds?
A. Catalytic
B. Parallel
C. Series
D. Auto catalytic
For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single_______________?
A. CSTR of volume V
B. PFR of volume V
C. CSTR of volume V/X
D. PFR of volume V/X
Catalyst carriers___________________?
A. Have very high selectivity
B. Increase the activity of a catalyst
C. Provide large surface area with a small amount of active material
D. Inhibit catalyst poisoning
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