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.

An irreversible first order reaction is being carried out in a CSTR and PFR of same volume. The liquid flow rates are same. The relative conversion will

Participation of __________ is involved in the occurrence of a chemical reaction

A photochemical reaction is __________ light.

Fluid flow in a real packed bed can be approximated as __________ model

The value of 'n' for a chemical reaction A → B, whose reaction rate is → CA n , will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled.

__________ resistance is not involved in the combustion of a carbon particle.

A stirred tank reactor compared to tubular-flow reactor provides

A first order reaction is to be treated in a series of two mixed reactors. The total volume of the two reactors is minimum, when the reactors are

Half life period of a first order irreversible reaction A → B is

An example of autothermal reactor operation is

The value of Steric factor 'P' in the equation k = PZe E/RT usually ranges from

Brunauer, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation?

'Unreacted core model' represents the reaction involving

The effectiveness factor for large value of Thiele modulus [L√(K/D1)] of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm2 /second).