Chemical Reaction Engineering
A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors.

Conversion in both will be the same but concentrations will be different
None of these
Both the conversion as well as concentrations will be different
Both conversion as well as concentration are same

ANSWER DOWNLOAD EXAMIANS APP

Chemical Reaction Engineering
Pick out the wrong statement pertaining to space velocity of flow reactors.

The unit of space velocity is (time)⁻¹
The space velocity of 3 hr⁻¹ means that three reactor volumes of feed at specified conditions are being fed into the reactor every hour
None of these
The space velocity of 3 hr⁻¹ means that one third reactor volume of feed at specified conditions are being fed into the reactor

ANSWER DOWNLOAD EXAMIANS APP

Chemical Reaction Engineering
The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the

Fraction of molecules having threshold energy increases
Collision frequency increases
Increased temperature reduces the activation energy
Value of threshold energy decreases

ANSWER DOWNLOAD EXAMIANS APP

Chemical Reaction Engineering
In a zero order reaction, reactants concentration does not change with time and the

Time for half change is independent of the initial concentration
Time for completion of the reaction is independent of the initial concentration
Reaction rate is trebled when the initial concentration is trebled
Time for half change is half the time taken for completion of the reaction

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Chemical Reaction Engineering