Chemical Reaction Engineering The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are Highly temperature sensitive Always irreversible Mostly irreversible Insensitive to temperature changes Highly temperature sensitive Always irreversible Mostly irreversible Insensitive to temperature changes ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the Catalyst size is increased or the catalyst diffusivity is increased Catalyst size is increased or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is increased Catalyst size is increased or the catalyst diffusivity is increased Catalyst size is increased or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is increased ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the chemical reaction X → Y, it is observed that, on doubling the concentration of 'X', the reaction rate quadruples. If the reaction rate is proportional to Cxn, then what is the value of 'n' ? 4 2 43834 16 4 2 43834 16 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is rR/rS = (k₁/k₂).Csub>Aa-b Use CSTR with a high conversion, when a > b Use high pressure and eliminate inerts, when a > b Use batch reactor or plug flow reactor, when a > b Avoid recycle, when a > b Use CSTR with a high conversion, when a > b Use high pressure and eliminate inerts, when a > b Use batch reactor or plug flow reactor, when a > b Avoid recycle, when a > b ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For every 10°C rise in temperature, the rate of chemical reaction doubles. When the temperature is increased from 30 to 70°C, the rate of reaction increases __________ times. 16 32 12 8 16 32 12 8 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a/an __________ reactor, there is exchange of heat with the surroundings with sizeable temperature variation. Non-adiabatic None of these Isothermal Adiabatic Non-adiabatic None of these Isothermal Adiabatic ANSWER DOWNLOAD EXAMIANS APP
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