Chemical Reaction Engineering Radioactive decay follows __________ order kinetics. First Second Zero Third First Second Zero Third ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering As the chemical reaction proceeds, the rate of reaction Remains same Decreases Increases May increase or decrease depending on the type of reaction Remains same Decreases Increases May increase or decrease depending on the type of reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a unit of reaction rate? Moles formed/volume of reactor) (time) None of these Moles for med/(surface of catalyst) (time) Mole formed/volume of catalyst) (time) Moles formed/volume of reactor) (time) None of these Moles for med/(surface of catalyst) (time) Mole formed/volume of catalyst) (time) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because CaO is not dissociated CO₂ escapes continuously CaO is more stable than CaCO₃ Of high calcination temperature CaO is not dissociated CO₂ escapes continuously CaO is more stable than CaCO₃ Of high calcination temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) E E + ΔHA - ΔHR ΔHA + ΔHR E + ΔHA E E + ΔHA - ΔHR ΔHA + ΔHR E + ΔHA ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a continuous flow stirred tank reactor, the composition of the exit stream Depends upon the flow rate of inlet stream Is different than that in the reactor None of these Is same as that in the reactor Depends upon the flow rate of inlet stream Is different than that in the reactor None of these Is same as that in the reactor ANSWER DOWNLOAD EXAMIANS APP
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