Chemical Reaction Engineering Enzymes are destroyed, when the Reactant's concentration is very low Reactant's concentration is very high Temperature is very high Reaction rate is independent of the reactant's concentration Reactant's concentration is very low Reactant's concentration is very high Temperature is very high Reaction rate is independent of the reactant's concentration 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. Either A, B or C Film diffusion Chemical reaction Diffusion through ash layer Either A, B or C Film diffusion Chemical reaction Diffusion through ash layer ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to D1.5 √d D D2 D1.5 √d D D2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of calcination of limestone, CaCO₃ CaO + CO₂, the addition of more of CaO will result in __________ in the concentration of CO₂. Unpredictable from the data Decrease No change Increase Unpredictable from the data Decrease No change Increase ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When the reaction occurs in the diffusion controlled region, the apparent activation energy as measured is only __________ the true value. Half None of these Equal Twice Half None of these Equal Twice ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following does not produce a change in the value of rate constant of a reaction? Pressure None of these Temperature Concentration and catalyst Pressure None of these Temperature Concentration and catalyst ANSWER DOWNLOAD EXAMIANS APP
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