Chemical Equilibrium and Kinetics AFCAT Questions

AFCAT Chemistry

Chemical Equilibrium and Kinetics MCQ Questions


7.

If the equilibrium constant K is very small, the reaction:

A.

Proceeds almost to completion

B.

Hardly proceeds

C.

Occurs spontaneously

D.

Is very fast

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ANSWER :

B. Hardly proceeds

8.

The Arrhenius equation relates the rate constant k to ______.

A.

Concentration

B.

Temperature

C.

Activation energy

D.

Pressure

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ANSWER :

C. Activation energy

9.
In an endothermic reaction, increasing the temperature shifts the equilibrium toward ______.
A.
Reactants
B.
Products
C.
No change
D.
Catalyst
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ANSWER :
B. Products
10.
The rate of a zero-order reaction depends on ______.
A.
Concentration
B.
Initial amount
C.
Time only
D.
None of the above
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ANSWER :
D. None of the above
11.
A reaction at equilibrium is said to be ______.
A.
Static
B.
Reversible
C.
Irreversible
D.
Dynamic
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ANSWER :
D. Dynamic
12.

The equilibrium constant for the reaction 2SO2+O2⇌2SO3 is expressed as:

A.

B.

C.

D.

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ANSWER :

B.