Chemical Reaction Engineering What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on? Litre/mole.second Moles/litre.second Litre/second Litre/mole Litre/mole.second Moles/litre.second Litre/second Litre/mole ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate determining step in a reaction consisting of a number of steps in series is the __________ step. Data insufficient; can't be predicted Slowest Fastest Intermediate Data insufficient; can't be predicted Slowest Fastest Intermediate ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When a catalyst increases the rate of forward reaction, the value of rate constant Increases Becomes infinite Decreases Remain same Increases Becomes infinite Decreases Remain same ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst in a chemical reaction __________ free energy change in the reaction. Increases Decreases Neither A nor B Either A or B; depends on the type of catalyst Increases Decreases Neither A nor B Either A or B; depends on the type of catalyst ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Molecularity of an elementary reaction, P + Q → R + S is 2 1 3 4 2 1 3 4 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reactions of high molecularity are rare, because Of requirement of very large concentration for such reactions Of low probability of many body collisions Many body collisions are not favoured energetically Of very large activation energy of many bodies Of requirement of very large concentration for such reactions Of low probability of many body collisions Many body collisions are not favoured energetically Of very large activation energy of many bodies ANSWER DOWNLOAD EXAMIANS APP
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