Chemical Reaction Engineering
In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.

Same as
Less than
Data insufficient; can't be predicted
More than

ANSWER DOWNLOAD EXAMIANS APP

Chemical Reaction Engineering
Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is

1
0
3
2

ANSWER DOWNLOAD EXAMIANS APP

Chemical Reaction Engineering
A batch reactor is

Suitable for gas-phase reactions on commercial scale
Suitable for liquid phase reactions involving small production rate
Most suitable for very large production rate
Least expensive to operate for a given rate

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Chemical Reaction Engineering