Medium
The velocity constant of a reaction is $K$. Which of the following statements is not true regarding $K$?
- A$K$ is a constant for a reaction at a given temperature.
- BThe value of $K$ changes when the temperature changes.
- C$K$ is the velocity of the reaction at unit concentrations of the reactant.
- D$K$ is a constant for all reactions.
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For a reaction $A + B \longrightarrow P$,the following data are provided. The rate constant for this reaction in standard units is:
Entry $[A]$ in $M$ $[B]$ in $M$ Initial rate $(M/s)$ $1$ $0.02$ $0.02$ $2 \times 10^{-2}$ $2$ $0.02$ $0.04$ $4 \times 10^{-2}$ $3$ $0.04$ $0.04$ $8 \times 10^{-2}$
| Entry | $[A]$ in $M$ | $[B]$ in $M$ | Initial rate $(M/s)$ |
|---|---|---|---|
| $1$ | $0.02$ | $0.02$ | $2 \times 10^{-2}$ |
| $2$ | $0.02$ | $0.04$ | $4 \times 10^{-2}$ |
| $3$ | $0.04$ | $0.04$ | $8 \times 10^{-2}$ |
DifficultTS EAMCET 2021
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