Chemical Reaction Engineering The increase in the rate of reaction with temperature is due to None of these Decrease in activation energy Increase in the average kinetic energy of the reacting molecules Increase in the number of effective collisions None of these Decrease in activation energy Increase in the average kinetic energy of the reacting molecules Increase in the number of effective collisions ANSWER DOWNLOAD EXAMIANS APP
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 Insensitive to temperature changes Always irreversible Mostly irreversible Highly temperature sensitive Insensitive to temperature changes Always irreversible Mostly irreversible Highly temperature sensitive ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst loses its activity due to Loss in surface area of the active component Covering of the catalytic active sites by a foregin substance Agglomeration of metal particles caused by thermal sintering of the solid surface All of these Loss in surface area of the active component Covering of the catalytic active sites by a foregin substance Agglomeration of metal particles caused by thermal sintering of the solid surface All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume. More than Data insufficient; can't be predicted Same as Less than More than Data insufficient; can't be predicted Same as Less than 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. 8 32 12 16 8 32 12 16 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst. Unpredictable from the data Decreases Increases Remains unaffected Unpredictable from the data Decreases Increases Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
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