The rate constant for a zero order reaction is $3 \times 10^{-2} \ mol \ L^{-1} \ s^{-1}$. After $25 \ s$,if the concentration of the reactant is $0.5 \ M$,then the initial concentration of the reactant is ............ $M$.
- A$1.0$
- B$1.25$
- C$0.5$
- D$0.75$
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The concentration of $R$ in the reaction $R \rightarrow P$ was measured as a function of time and the following data is obtained:
$[R] \text{ (molar)}$ $1.0$ $0.75$ $0.40$ $0.10$ $t \text{ (min.)}$ $0.0$ $0.05$ $0.12$ $0.18$
The order of the reaction is:
| $[R] \text{ (molar)}$ | $1.0$ | $0.75$ | $0.40$ | $0.10$ |
| $t \text{ (min.)}$ | $0.0$ | $0.05$ | $0.12$ | $0.18$ |
The order of the reaction is:
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The rate constant for a zero order reaction is $2 \times 10^{-2} \ mol \ L^{-1} \ sec^{-1}$. If the concentration of the reactant after $25 \ sec$ is $0.5 \ M$,the initial concentration must have been ......... $M$.
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