Question Answers
Sahay Sir > Question Answers
The reaction A(g) + 2B(g) → C(g) is an elementary reaction. In an experiment involving this reaction, the initial pressures of A and B are PA = 0.40 atm and PB = 1.0 atm respectively. When PC=0.3 atm, the rate of the reaction relative to the initial rate is :-
03
Jun
The reaction A(g) + 2B(g) → C(g) is an elementary reaction. In an experiment involving this reaction, the initial pressures of A and B are PA = 0.40 atm and PB = 1.0 atm respectively. When PC=0.3 atm, the rate of the reaction relative to the initial rate is :- the initial pressures of A [...]
The kinetic date for the given reaction A(g)+2B(g)→KC(g) is provided in the following table for three experiments at 300 K
03
Jun
The kinetic date for the given reaction A(g)+2B(g)→KC(g) is provided in the following table for three experiments at 300 K The kinetic date for the given reaction A(g)+2B(g)→KC(g) is provided in the following table for three experiments at 300 K June 3, 2021 Category: Chapter 7 - Chemical Kinetics and Nuclear Chemistry (Level 1 and [...]
The forward rate constant for the elementary reversible gaseous reaction C2H6
03
Jun
The forward rate constant for the elementary reversible gaseous reaction C2H6 The forward rate constant for the elementary reversible gaseous reaction C2H6 June 3, 2021 Category: Chapter 7 - Chemical Kinetics and Nuclear Chemistry (Level 1 and Level 2) , N Awasthi Physical Chemistry ,
A chemical reaction occurs as a result of collisions between reacting molecules. Therefore, the reaction rate is given by:
03
Jun
A chemical reaction occurs as a result of collisions between reacting molecules. Therefore, the reaction rate is given by: A chemical reaction occurs as a result of collisions between reacting molecules. Therefore the reaction rate is given by: June 3, 2021 Category: Chapter 7 - Chemical Kinetics and Nuclear Chemistry (Level 1 and Level 2) [...]
A hypothetical reaction A2+B2→2AB follows the mechanism as given below, A2⇌A+A (fast) A+B2→AB+B (slow) A+B→AB (fast) The order of the overall reaction by RDS method is
03
Jun
A hypothetical reaction A2+B2→2AB follows the mechanism as given below, A2⇌A+A (fast) A+B2→AB+B (slow) A+B→AB (fast) The order of the overall reaction by RDS method is A hypothetical reaction A2+B2→2AB follows the mechanism as given below A2⇌A+A (fast) A+B2→AB+B (slow) A+B→AB (fast) The order of the overall reaction by RDS method is June 3, 2021 [...]
A following mechanism has been proposed for a reaction: 2A+B→D+E A+B→C+D (slow) A+C→E (fast) The rate law expression for the reaction by RDS method is :
03
Jun
A following mechanism has been proposed for a reaction: 2A+B→D+E A+B→C+D (slow) A+C→E (fast) The rate law expression for the reaction by RDS method is : A following mechanism has been proposed for a reaction: 2A+B→D+E A+B→C+D (slow) A+C→E (fast) The rate law expression for the reaction by RDS method is : June 3, 2021 [...]
A catalyst lowers the activation energy for a certain reaction from 83.314 to 75 KJ mol^−1 at 500 K . What will be the rate of reaction as compared to uncatalysed reaction ? Assume other things being equal.
03
Jun
A catalyst lowers the activation energy for a certain reaction from 83.314 to 75 KJ mol^−1 at 500 K . What will be the rate of reaction as compared to uncatalysed reaction ? Assume other things being equal. The temperature coefficient of a reaction is : June 3, 2021 Category: Chapter 7 - Chemical Kinetics [...]
For the first order reaction A→B+C , carried out at 27∘ C . If 3.8×10^−16% of the reactant molecules exists in the activated state , the Ea (activation energy) of the reaction is:
03
Jun
For the first order reaction A→B+C , carried out at 27∘ C . If 3.8×10^−16% of the reactant molecules exists in the activated state , the Ea (activation energy) of the reaction is: carried out at 27∘ C . If 3.8×10^−16% of the reactant molecules exists in the activated state For the first order reaction [...]
Which of the following explains the increases of the reaction rate by catalyst ?
03
Jun
Which of the following explains the increases of the reaction rate by catalyst ? Which of the following explains the increases of the reaction rate by catalyst ? June 3, 2021 Category: Chapter 7 - Chemical Kinetics and Nuclear Chemistry (Level 1 and Level 2) , N Awasthi Physical Chemistry ,
A first order reaction is 50% completed in 20 minutes at 27C and in 5 min at 47C. The energy of activation of the reaction is
03
Jun
A first order reaction is 50% completed in 20 minutes at 27C and in 5 min at 47C. The energy of activation of the reaction is A first order reaction is 50% completed in 20 minutes at 27C and in 5 min at 47C. The energy of activation of the reaction is June 3, 2021 [...]