Chemistry · Reaction Kinetics
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- AZero order
- BHalf order
- CSecond order
- DFirst order
In First order reactions, the graph represents the half-life is different from zero order reaction in a way that the slope continually decreases as time progresses until it reaches zero. We can also easily see that the length of half-life will be constant, independent of concentration. For example, it takes the same amount of time for the concentration to decrease from one point to another point. The half-life of zero order reaction decreases as the concentration decreases. The half life of second order reactions increases as the concentration increases.
If the concentration-time graph of a reactant indicates a constant half-life, the reaction is a first-order reaction with respect to that reactant. In first-order reactions, the half-life remains constant, and the rate of the reaction is directly proportional to the concentration of the reactant. Therefore this option is not correct.
If the concentration-time graph of a reactant indicates a constant half-life, the reaction is a first-order reaction with respect to that reactant. In first-order reactions, the half-life remains constant, and the rate of the reaction is directly proportional to the concentration of the reactant. Therefore this option is not correct.
If the concentration-time graph of a reactant indicates a constant half-life, the reaction is a first-order reaction with respect to that reactant. In first-order reactions, the half-life remains constant, and the rate of the reaction is directly proportional to the concentration of the reactant. Therefore this option is not correct.
In First order reactions, the graph represents the half-life is different from zero order reaction in a way that the slope continually decreases as time progresses until it reaches zero. We can also easily see that the length of half-life will be constant, independent of concentration. For example, it takes the same amount of time for the concentration to decrease from one point to another point. The half-life of zero order reaction decreases as the concentration decreases. The half life of second order reactions increases as the concentration increases.
Tagged under Chemistry · Reaction Kinetics · 2018