Chemical Reaction Engineering The concentration of A in a first order reaction, A → B, decreases Exponentially with time Linearly with time Very abruptly towards the end of the reaction Logarithmically with time Exponentially with time Linearly with time Very abruptly towards the end of the reaction Logarithmically with time ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is 1 2 0 3 1 2 0 3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering BET apparatus Measures the catalyst surface area directly Operates at very high pressure None of these Is made entirely of stainless steel Measures the catalyst surface area directly Operates at very high pressure None of these Is made entirely of stainless steel ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will Increase Remain same Data in insufficient; can't be predicted Decrease Increase Remain same Data in insufficient; can't be predicted Decrease ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The use of space time is preferred over the mean residence time in the design of a/an Slurry reactor Batch reactor CSTR Ideal tubular-flow reactor Slurry reactor Batch reactor CSTR Ideal tubular-flow reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the Both A & B Pressure Neither A nor B Temperature Both A & B Pressure Neither A nor B Temperature ANSWER DOWNLOAD EXAMIANS APP
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