A. Temperature only
B. Pressure only
C. Composition only
D. All A., B. and C.
Correct Answer: D. All A., B. and C. ✔
Last Updated: February 20, 2019
Related MCQs
- Oil is hydrogenated using nickel catalyst in a __________ reactor?
- The reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction?
- Which of the following is not endothermic in nature ?
- Differential method for analysing the kinetic data is used __________?
- For a tubular flow reactor with uniform concentration and temperature, the independent variable is__________?
- In chamber process of sulphuric acid manufacture in industry, the gas phase oxidation of SO2 to SO3 is accomplished by a __________ reaction ?
- The catalyst in a first order chemical reaction changes the__________?
- For a tubular reactor with space time ‘η’ and residence time ‘ζ’, the following statement holds good ?
- Kinetics of a solid catalysed reaction can best be studied in a __________ reactor?
- If ‘n’ is the order of reaction, then unit of rate constant is __________?
- A rise in temperature __________?
- BET apparatus is used to determine the __________?
- Effectiveness factor of a catalyst pellet is a measure of the __________ resistance?
- In the fluid catalytic cracker (FCC), the cracking reaction is (i) and the regeneration is (ii) __________?
- A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is __________?
- In which of the following reactions, the equilibrium will shift to the right, if the total pressure is increased ?
- A plug-flow reactor is characterized by __________?
- The rate of a gas phase reaction is given by K . CA . CB. 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?
- In a CSTR __________ varies with time ?
- The enzyme which can catalyse the conversion of glucose to ethyl alcohol is __________?
- The rate constant of a reaction depends on the __________?
- The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is __________?
- The space time is equivalent to the holding time in a steady state mixed reactor for__________?
- For a zero order reaction, the concentration of product increases with the __________?
- The preferred reacting system for oxidation of o-xylene to phthalic anhydride is __________?
- The gas phase reaction 2A ⇌ B is carried out in an isothermal plug flow reactor. The feed consists of 80 mole % A and 20 mole % inerts. If the conversion of A at the reactor exit is 50%, then CA/CA0 at the outlet of the reactor is __________?
- Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor ?
- What is the order of a chemical reaction whose rate is deter-mined by the variation of one concentration term only ?
- When a catalyst increases the rate of chemical reaction, the rate constant__________?
- A reaction which is catalysed by a base is catalysed by all substances which have a tendency to__________?
- If ΔG (free energy change) for a chemical reaction is very large and negative, then the reaction is__________?
- __________ catalytic reaction is involved in the thermal cracking of gas oil ?
- The residence time distribution of an ideal CSTR is __________?
- Which of the following is not a unit of reaction rate ?
- Rate of a chemical reaction is independent of the concentration of the reactants for a __________ reaction?
- A batch reactor suffers from following disadvantage ?
- A catalyst inhibitor__________?
- Calcination reaction of limestone (CaCO3 → CaO + CO2) goes to completion in the rotary kiln, because__________?
- Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure ?
- Promoter is added to the catalyst to improve its__________?
- A batch reactor is characterised by __________?
- Concentration of the limiting reactant (with initial concentration of a moles/litre) after time t is (a-x). Then ‘t’ for a first order reaction is given by__________?
- What is the maximum possible value of FR(mole/sec.) ?
- A second order reaction of the form A + B → C is called a pseudo-first order reaction, when__________?
- Pure A in gas phase enters a reactor 50% of this A is converted to B through the reaction, A → 3B. Mole fraction of A in the exit stream is__________?
- A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction?
- For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance?
- A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by__________?
- Decomposition rate of a liquid ‘X’ which decomposes as per the reaction as shown in the bellow figure is given by__________?
- 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 __________?
- Given, 3H2 + CO = CH4 + H2O, KP = 101.84 and, 4H2 + CO2 = CH4 + 2H2O, KP = 101.17 the KP for the reaction CO + H2O = CO2 + H2 is __________?