Related Questions

Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.
A Proportional to
B Independent of
C Inversely proportional to
D Proportional to the square of
For a __________ order reaction, the units of rate constant and rate of reaction are the same.
A Zero
B First
C Second
D Fractional
The rate constant of a first order reaction depends on the
A Concentration of the reactant
B Temperature
C Concentration of the product
D Time
In order to have constant chain reaction to produce a constant rate of heat output, the value of ratio of the number of neutrons in one generation to the number of neutrons in the immediately preceding generation must be
A Greater than 1.0
B Less than 1.0
C Equal to zero
D Equal to 1.0
The equilibrium constant K of a chemical reaction depends on
A Temperature only
B Pressure only
C Temperature and pressure
D Ratio of reactants
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the
A Equal sized reactors are the best
B Smaller reactor should come first
C Larger reactor should come first
D None of these
Two trains , X and Y, started simultaneously form opposite ends of a 100 mile route and traveled toward each other on parallel tracks. Train x , travelling at a constant rate, completed the 100 mile trip in 5 hours, Train Y, travelling at a constant rate , completed the 100 mile trip in 3 hours .How many miles had Train X traveled when it met Train Y?
A 37. 5
B 40
C 60
D 62. 5
When a catalyst increases the rate of chemical reaction, the rate constant
A Decreases
B Increases
C Remains constant
D Becomes infinite
When a catalyst increases the rate of forward reaction, the value of rate constant
A Increases
B Decreases
C Remain same
D Becomes infinite
The rate of forward reaction, at chemical equilibrium is____the rate of backward reaction.
A More than
B Less than
C Equal to
D Either B or C

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