The time needed to achieve the same fractional conversion for particles of different sizes ( d ) when chemical reaction controls, is proportional to

The time needed to achieve the same fractional conversion for particle

1.	The time needed to achieve the same fractional conversion for particles of different sizes ( d ) when chemical reaction controls, is proportional to
A.	d
B.	d
C.	d 1.5
D.	d 2
Answer» D. d 2

Discussion

No Comment Found

Related MCQs

For a tubular reactor with space time \'τ\' and residence time \'θ\', the following statement holds good.
The first order series reaction is conducted in a batch reactor. The initial concentrations of A, B and C ( C A 0 , C B 0 , C C 0 respectively) are all non-zero. The variation of C B with reaction time will not show a maximum, if
A first order reaction A B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by
The effectiveness factor for large value of Thiele modulus ( L K / D 1 ) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D 1 = diffusion co-efficient, cm 2 /second)
In a chemical reaction, repesented by, , it is observed that the (i) rate of reaction increases by a factor of 4 on doubling the concentration of the reactant. (ii) rate of reaction increases by a factor of 9 on trebling the concentration of the reactant. Then the rate of the reaction is proportional to(where, C A = contentration of the reactant)
The rate of a gas phase reaction is given by K . C A . C B . If the volume of the reaction vessel is reduced to l/4th of its initial volume, then the reaction rate compared to the original rate will be __________ times.
Effectiveness factor ( E ) of a catalyst pellet is defined as, Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)
A second order reaction of the form A + B C is called a pseudo-first order reaction, when
What is the value of ' n ' if the reaction rate of the chemical reaction A B , is proportional to C A n and it is found that the reaction rate triples, when the concentration of ' A ' is increased 9 times ?
For reaction, P + 2 3 R , molar rate of consumption of P is

The time needed to achieve the same fractional conversion for particles of different sizes ( d ) when chemical reaction controls, is proportional to

Discussion

No Comment Found

Related MCQs

Reply to Comment