Chemical Reaction Engineering The concentration of A in a first order reaction, A → B, decreases Linearly with time Exponentially with time Logarithmically with time Very abruptly towards the end of the reaction Linearly with time Exponentially with time Logarithmically with time Very abruptly towards the end of the reaction 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 Always irreversible Mostly irreversible Highly temperature sensitive Insensitive to temperature changes Always irreversible Mostly irreversible Highly temperature sensitive Insensitive to temperature changes ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds. 1 3 43833 32 1 3 43833 32 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield. Can be either greater or smaller than (depends on the type of reaction) Is greater than Equals Is smaller than Can be either greater or smaller than (depends on the type of reaction) Is greater than Equals Is smaller than ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is 22 2 11 4 22 2 11 4 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffacted by pressure changes ? 2O? ? 3O? 2SO? + O? ? 2SO? N? + O? ? 2NO 2NO? ? N?O? 2O? ? 3O? 2SO? + O? ? 2SO? N? + O? ? 2NO 2NO? ? N?O? ANSWER DOWNLOAD EXAMIANS APP
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