INDUS VALLEY CIVILISATION QUIZ

0.5

0.425

Data insufficient to calculate

0.875

√m

m

m²

1/m

Can be either greater or smaller than (depends on the type of reaction)

Equals

Is smaller than

Is greater than

CaO is not dissociated

CO₂ escapes continuously

Of high calcination temperature

CaO is more stable than CaCO₃

All of these

Mixing takes place in radial direction

There is a uniform velocity across the radius

There is no mixing in longitudinal direction

(E + ED)/2

(E + ED) where ED is activation due to diffusion

The intrinsic activation energy E

ED/2

Half of the space time of a reaction

The time required to reduce the concentration of the reacting substance to half its initial value

None of these

Half of the residence time of a reaction

Neither A nor B

Both A & B

Quality & yield can not be achieved in continuous processes, because of long residence time

Sales demand is fluctuating

Manufacture of carbon disulphide from elements

None of these

Roasting of sulphide ores

Combustion of coal particles

Space time is equivalent to holding time for constant density systems

Composition throughout the reactor remains same

All of these

Exit stream has the same composition as the fluid within the reactor