The rate of the reaction 2A + B2 Rate = k [A] [B2]. →2AB is given by The value of rate constant (k) can be increased by: (A) increasing the concentration of A (B) increasing the concentration of B (C) increasing the temperature (D) all the above three
Question
The rate of the reaction 2A + B2 Rate = k [A] [B2]. →2AB is given by The value of rate constant (k) can be increased by: (A) increasing the concentration of A (B) increasing the concentration of B (C) increasing the temperature (D) all the above three
Solution
The rate constant (k) of a reaction is a measure of the speed at which a chemical reaction takes place. It is not affected by the concentration of the reactants (A and B2 in this case), so options (A) and (B) are incorrect.
However, the rate constant is directly proportional to the temperature. This is because increasing the temperature increases the kinetic energy of the molecules, causing them to collide more frequently and with greater force. This increases the likelihood of successful collisions that result in a reaction. Therefore, option (C) is correct.
So, the correct answer is (C) increasing the temperature.
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