Chemical Reaction Engineering Which of the following is used for calcination of limestone and dolomite in industrial practice? Moving bed reactor Fixed bed reactor Fluidised bed reactor None of these Moving bed reactor Fixed bed reactor Fluidised bed reactor None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Specific rate constant for a second order reaction Varies with temperature Both B and C Is independent of temperature Depends on the nature of the reactants Varies with temperature Both B and C Is independent of temperature Depends on the nature of the reactants ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The conversion of a reactant, undergoing a first order reaction, at a time equal to three times the half life of the reaction is Data insufficient to calculate 0.425 0.5 0.875 Data insufficient to calculate 0.425 0.5 0.875 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A space velocity of 5 hr⁻¹ means that After every 5 hours, reactor is being filled with the feed Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour Cent per cent conversion can be achieved in at least 5 hours A fixed conversion of a given batch of feed takes 5 hours After every 5 hours, reactor is being filled with the feed Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour Cent per cent conversion can be achieved in at least 5 hours A fixed conversion of a given batch of feed takes 5 hours ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An isothermal aqueous phase reversible reaction, P ⇋ R, is to be carried out in a mixed flow reactor. The reaction rate in k.mole/m³ .h is given by, r = 0.5CP - 0.125CR. A stream containing only P enters the 0.80 1.60 1.33 2.67 0.80 1.60 1.33 2.67 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is Plug flow reactor Series of CSTR PFR in series Backmix reactor Plug flow reactor Series of CSTR PFR in series Backmix reactor ANSWER DOWNLOAD EXAMIANS APP
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