Q. The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is __________ that of mixed reactor.

View solution

Q. A space time of 3 hours for a flow reactor means that

View solution

Q. Which of the following factors control the deactivation of a porous catalyst pellet ?

View solution

Q. For the reaction, A + B → 2B + C,

View solution

Q. Pick out the wrong statement.

View solution

Q. In a reversible reaction, a catalyst increases the rate of forward reaction

View solution

Q. Maximum equilibrium conversion for endothermic reaction is obtained at the __________ temperature.

View solution

Q. When an exothermic reversible reaction is conducted adiabatically, the rate of reaction

View solution

Q. For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to

View solution

Q. In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for

View solution

Q. Helium-mercury method can be used to determine the __________ of the catalyst particle.

View solution

Q. For the chemical reaction X → Y, it is observed that, on doubling the concentration of 'X', the reaction rate quadruples. If the reaction rate is proportional to Cₓⁿ, then what is the value of 'n' ?

View solution

Q. Chemical reaction rate of a component depends upon the

View solution

Q. In a semi-batch reactor

View solution

Q. The equilibrium constant K of a chemical reaction depends on

View solution

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

View solution

Q. Which of the following is not a unit of reaction rate ?

View solution

Q. Brunaur, 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 ?

View solution

Q. The sequence in which three CSTR's of volumes 5, 10 and 15 m³ will be connected in series to obtain the maximum production in a second order irreversible reaction is

View solution

Q. With increase in temperature, the equilibrium conversion of a reversible exothermic reaction

View solution