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

Q. In a CSTR __________ varies with time.

View solution

Q. The following gas phase reactions are carried out isothermally in a CSTR.

A → 2R ; r₁ = k₁pᴀ ;
k₁ = 20 mole/(sec.m³ bar)
A → 3S ; r₂ = k₂ pᴀ ;
k₂ = 40 mole/(sec.m³ .bar)

What is the maximum possible value of Fʀ(mole/sec.) ?

View solution

Q. As the chemical reaction proceeds, the rate of reaction

View solution

Q. Pick out the wrong statement.

View solution

Q. For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single

View solution

Q. Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes.

View solution

Q. For a __________ order reaction, the units of rate constant and rate of reaction are the same.

View solution

Q. In case of staged packed bed reactors carrying out exothermic reaction, use

View solution

Q. Vegetable oils are hydrogenated in a __________ reactor.

View solution

Q. With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be

View solution