Chemical Reaction Engineering The concentration of A in a first order reaction, A → B, decreases Exponentially with time Very abruptly towards the end of the reaction Linearly with time Logarithmically with time Exponentially with time Very abruptly towards the end of the reaction Linearly with time Logarithmically with time ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reason why a catalyst increases the rate of reaction is that, it Decreases the molecular collision diameter None of these Decreases the energy barrier for reaction Increases the activation energy Decreases the molecular collision diameter None of these Decreases the energy barrier for reaction Increases the activation energy ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in initial concentration, the fractional conversion of a first order reaction in a given time Unpredictable Increases Decreases Remains constant Unpredictable Increases Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield. 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 Can be either greater or smaller than (depends on the type of reaction) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Arhenious equation shows the variation of __________ with temperature. Energy of activation Reaction rate Frequency factor Rate constant Energy of activation Reaction rate Frequency factor Rate constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a homogeneous reaction of nth order, the dimension of the rate constant is given by None of these (concentration)n - 1/(time) L/(time)n (concentration)1 - n/(time) None of these (concentration)n - 1/(time) L/(time)n (concentration)1 - n/(time) ANSWER DOWNLOAD EXAMIANS APP
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