Chemical Reaction Quiz 9

Which of the following will favour the reverse reaction in a chemical equilibrium reaction ?

Which of the following will give maximum gas conversion ?

Which of the following chemical reactions will be favoured by low pressure ?

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

With increase in temperature, the equilibrium ________ rises in case of endothermic reaction?

With an increase in pressure in gaseous phase chemical reactions, the fractional conversion _______ when the number of moles decreases?

Which of the following is a characteristic of an ideal plug flow reactor ?

Which of the following is an independent variable for a batch tank reactor with uniform concentration and temperature ?

When an exothermic reversible reaction is conducted adiabatically, the rate of reaction______?

Which of the following fixes the volume of a batch reactor for a particular conversion and production rate ?

Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor ?

Which of the following is not endothermic in nature ?

When the reaction is dominated by intraparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as _________?

With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion)?

Which of the following is not a chemical step in a fluid solid catalytic reaction ?

Which of the following does not produce a change in the value of rate constant of a reaction ?

Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure ?

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

With increase in temperature, the rate constant obeying Arrhenius equation______?

With increase in K2/K1 in case of a unimolecular type elementary reactions as shown in the bellow figure, the fractional yield of ?R? in mixed reactor (for a given conversion of ?A?) ?

Which of the following factors control the design of a fluid-solid reactor ?

When the reaction occurs in the diffusion controlled region, the apparent activation energy as measured is only ________ the true value?

With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will_________?

Which of the following is not a theory of homogeneous reaction ?

Which of the following holds good for an elementary reaction as shown in the bellow figure ?

Which of the following is the most suitable for very high pressure gas phase reaction ?

Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature ?

Which of the following resistances is not involved in a gas phase catalytic (gas-solid) reaction ?

Which of the following is used for calcination of limestone and dolomite in industrial practice?

Which of the following is a controlling factor in very fast heterogeneous reaction ?

With decrease in temperature, the equilibrium conversion of a reversible endothermic reaction__________?

With increase in initial concentration, the fractional conversion of a first order reaction in a given time_____?

Which of the following is the most suitable for isothermal operation?

Which of the following is an autocatalytic reaction ?

When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is___________?

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___________?