Chemical Reaction Engineering A rise in temperature All of these Normally tends to increase the reaction rate Does not affect photo-chemical reaction rates Does not affect a catalysed reaction All of these Normally tends to increase the reaction rate Does not affect photo-chemical reaction rates Does not affect a catalysed reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to 1 0.5 0.1 1 0.5 0.1 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 3 1 0 2 3 1 0 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A plug-flow reactor is characterised by Presence of lateral mixing Presence of axial mixing High capacity Constant composition and temperature of reaction mixture Presence of lateral mixing Presence of axial mixing High capacity Constant composition and temperature of reaction mixture ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ⇋ 2NH₃. Decreases Increases Unpredictable from the data Remains unchanged Decreases Increases Unpredictable from the data Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is the most suitable for isothermal operation? Fixed bed reactor Back-mix reactor Batch reactor Plug-flow reactor Fixed bed reactor Back-mix reactor Batch reactor Plug-flow reactor ANSWER DOWNLOAD EXAMIANS APP
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