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. No change Increase Decrease Unpredictable from the data No change Increase Decrease Unpredictable from the data ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the same residence time, which one will give the maximum conversion? Single tubular flow reactor (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Single stirred tank (v = 5 litres) Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single tubular flow reactor (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Single stirred tank (v = 5 litres) Stirred tank followed by tubular flow reactor (each of 2.5 litres) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor. Tubular flow Batch Stirred tank Fixed bed Tubular flow Batch Stirred tank Fixed bed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A reversible liquid phase endothermic reaction is to be carried out in a plug flow reactor. For minimum reactor volume, it should be operated such that the temperature along the length Is at the highest allowable temperature throughout Increases First increases and then decreases Decreases Is at the highest allowable temperature throughout Increases First increases and then decreases Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The concentration of A in a first order reaction, A → B, decreases Logarithmically with time Very abruptly towards the end of the reaction Linearly with time Exponentially with time Logarithmically with time Very abruptly towards the end of the reaction Linearly with time Exponentially with time ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the order of a chemical reaction whose rate is deter-mined by the variation of one concentration term only? Second Zero First Third Second Zero First Third ANSWER DOWNLOAD EXAMIANS APP
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