Chemical Reaction Engineering The reactions of high molecularity are rare, because Of low probability of many body collisions Of requirement of very large concentration for such reactions Of very large activation energy of many bodies Many body collisions are not favoured energetically Of low probability of many body collisions Of requirement of very large concentration for such reactions Of very large activation energy of many bodies Many body collisions are not favoured energetically ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is Same More Either A or B, depends on other factors Less Same More Either A or B, depends on other factors Less ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by Diffusion within the pellet External mass transfer Reaction None of these Diffusion within the pellet External mass transfer Reaction None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The eddy diffusivity for a liquid in plug flow must be ∞ Between 0 and 1 1 0 ∞ Between 0 and 1 1 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The order of a chemical reaction is An experimentally determined quantity Never fractional None of these Always equal to the total stoichiometric number of reactants An experimentally determined quantity Never fractional None of these Always equal to the total stoichiometric number of reactants ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the time required to change the concentration of reactant to half its original value is independent of the initial concentration, the order of reaction is Two One Zero Three Two One Zero Three ANSWER DOWNLOAD EXAMIANS APP
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