For a zero-order reaction,the rate constant $K = 2 \times 10^{-2} \ mol \ L^{-1} \ s^{-1}$. If the concentration of the reactant after $25 \ s$ is $0.5 \ M$,then its initial concentration must be ...... $M$.
- A$0.5$
- B$1.25$
- C$12.5$
- D$1.0$
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The rate constant,$k$ of a zero order reaction $2 NH_{3(g)} \xrightarrow[1130 \ K]{Pt} N_{2(g)} + 3 H_{2(g)}$ is $y \times 10^{-4} \ mol \ L^{-1} \ s^{-1}$. The rate of formation of hydrogen (in $mol \ L^{-1} \ s^{-1}$) is
Calculate the rate constant of a zero order reaction if it is $90 \%$ completed in $90 \ s$.
Which of the following is true for a zero order reaction?
Easy
View SolutionThe rates of a certain reaction $(dc/dt)$ at different times are as follows:
Time $(sec)$ Rate $(mole \ litre^{-1} \ sec^{-1})$ $0$ $2.8 \times 10^{-2}$ $10$ $2.78 \times 10^{-2}$ $20$ $2.81 \times 10^{-2}$ $30$ $2.79 \times 10^{-2}$
The reaction is:
| Time $(sec)$ | Rate $(mole \ litre^{-1} \ sec^{-1})$ |
|---|---|
| $0$ | $2.8 \times 10^{-2}$ |
| $10$ | $2.78 \times 10^{-2}$ |
| $20$ | $2.81 \times 10^{-2}$ |
| $30$ | $2.79 \times 10^{-2}$ |
The reaction is:
Medium
View SolutionIn which one of the following reactions,the rate constant has the unit $mol \ L^{-1} \ s^{-1}$?
DifficultKCET 2023
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