Chemical Engineering - Chemical Reaction Engineering

26.
In a chemical reaction , it is observed that the
(i) rate of formation of 'P' is doubled on doubling the concentration of 'X'.
(ii) rate of formation of 'P' is quadrupled on doubling the concentration of 'Y'.
(iii) doubling the concentration of 'Z' does not affect the rate of formation of 'P'.
What is the order of the above chemical reaction?
Zeroth order
First order
Second order
Third order
Answer: Option
Explanation:
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27.
The half life period of a first order reaction is given by (where, K = rate constant. )
1.5 K
2.5 K
0.693/K
6.93 K
Answer: Option
Explanation:
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28.
Half life period of a chemical reaction is
the time required to reduce the concentration of the reacting substance to half its initial value.
half of the space time of a reaction.
half of the residence time of a reaction.
none of these
Answer: Option
Explanation:
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29.
In the gaseous phase ammonia formation reaction (N2 + 3H2 2NH3), the value of the equilibrium constant depends on the
total pressure of the system.
volume of the reactor.
temperature.
initial concentration of N2 and H2.
Answer: Option
Explanation:
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30.
Transition state theory relates the above quantities as
k ∝ e-E/RT
kT.eE/RT
kT
kT1.5
Answer: Option
Explanation:
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