Examine your graph plots.
Is the rate constant over time or does it vary over time?
Theoretically, yes it is constant, but sometimes it can vary from one isotope to another.
No, it is not constant at all
. The rate constant can vary over time. In some cases, the rate constant may remain constant throughout the reaction, indicating a constant rate of reaction. However, there are instances where the rate constant changes as the reaction progresses, resulting in a varying rate of reaction. Factors such as temperature, concentration, and catalysts can influence the rate constant and cause it to change over time.
To determine if the rate constant is constant or varies over time, you would need to examine the graph plots of the reaction rate as a function of time. Here's how you can do it:
1. Collect data: Gather data on the reaction rate at different time intervals. This can be done by conducting experiments or analyzing existing experimental data.
2. Plot the data: Plot the reaction rate on the y-axis and the corresponding time intervals on the x-axis. This will give you a graph that shows the variation of the reaction rate over time.
3. Analyze the graph: Look for patterns or trends in the graph. If the graph shows a constant reaction rate over time, it suggests that the rate constant is constant. On the other hand, if the graph shows fluctuations or changes in the reaction rate, it indicates that the rate constant is not constant.
Keep in mind that the rate constant may vary depending on the specific reaction and conditions. Different isotopes, for example, may have different rate constants due to their different properties.
By examining the graph plots, you can determine whether the rate constant is constant over time or if it varies.