Chemical Reaction Engineering What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on? Litre/second Litre/mole Litre/mole.second Moles/litre.second Litre/second Litre/mole Litre/mole.second Moles/litre.second ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering 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. Film diffusion Diffusion through ash layer Chemical reaction Either A, B or C Film diffusion Diffusion through ash layer Chemical reaction Either A, B or C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor is Suitable for liquid phase reactions involving small production rate Suitable for gas-phase reactions on commercial scale Least expensive to operate for a given rate Most suitable for very large production rate Suitable for liquid phase reactions involving small production rate Suitable for gas-phase reactions on commercial scale Least expensive to operate for a given rate Most suitable for very large production rate ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism. Inversely proportional to Proportional to Proportional to the square of Independent of Inversely proportional to Proportional to Proportional to the square of Independent of ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield. Is smaller than Equals Can be either greater or smaller than (depends on the type of reaction) Is greater than Is smaller than Equals Can be either greater or smaller than (depends on the type of reaction) Is greater than ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Integral method for analysing the kinetic data is used When the data are scattered For testing specific mechanisms with simple rate expressions Both A and B None of these When the data are scattered For testing specific mechanisms with simple rate expressions Both A and B None of these ANSWER DOWNLOAD EXAMIANS APP
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