Q. A catalyst is said to be a negative catalyst, if it

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Q. For the non catalytic reaction of particles with surrounding fluid, the same needed to achive the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the __________ is the controlling resistance.

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Q. Pure ethanol vapor is fed to a reactor packed with alumina catalyst, at the rate of 100 kmole / hr. The reactor products comprise: ethylene :95 kmole / hr, water vapour: 97.5 k mole / hr and diethyl ether :2.5 kmole/hr. The reactions occuring can be represented by:

C₂H₅OH → C₂H₄ + H₂O
2C₂H₅OH → C₂H₅ - O - C₂H₅ + H₂O

The percent conversion of ethanol in the reactor is

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Q. Pick out the wrong statement.

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Q. A backmix reactor

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Q. Rate of a chemical reaction is not influenced by the

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Q. Pick out the wrong statement:

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Q. In the reversible reaction of the type, A + B ↔ AB, in general

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Q. A batch reactor is

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Q. For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is

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Q. A chemical reaction is of zero order, when the reaction rate is (where, Cᴀ = concentration of reactant)

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Q. An imbalanced chemical reaction equation is against the law of

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Q. For the chemical reaction P → Q, it is found that the rate of reaction doubles as the concentration of 'P' is doubled. If the reaction rate is proportional to Cₚⁿ, then what is the value of 'n' for this chemical reaction ?

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

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Q. Velocity of a reaction depends upon the

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Q. Threshold energy in a reaction is equal to the

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Q. Pick out the wrong statement.

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Q. There is no correspondence between stoichiometry and the rate equation in case of a/an __________ reaction.

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Q. A spherical porous catalyst particle of radius R is subjected to reactant A which reacts to form B by a zero order surface reaction A → B. Film mass transfer resistance is negligible and pore diffusion of A is rate controlling. The effectiveness factor of the catalyst is reported as 7/8. Which of the following statement is true?

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

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