Textbook Question
Suppose that for the reaction K + L → M, you monitor the production of M over time, and then plot the following graph from your data:
(b) Is the reaction completed at t = 15 min? [Section 14.2]
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15. Chemical Kinetics
Intro to Chemical Kinetics
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Given the concentration of H2O decreases from 0.80 M to 0.60 M between 25 s and 65 s, calculate the average rate of the reaction in M/s.
A
0.004 M/s
B
0.006 M/s
C
0.008 M/s
D
0.002 M/s
Verified step by step guidance1
Identify the change in concentration of H2O. The initial concentration is 0.80 M and the final concentration is 0.60 M.
Calculate the change in concentration (Δ[H2O]) by subtracting the final concentration from the initial concentration: Δ[H2O] = 0.60 M - 0.80 M.
Determine the time interval over which this change occurs. The initial time is 25 s and the final time is 65 s.
Calculate the change in time (Δt) by subtracting the initial time from the final time: Δt = 65 s - 25 s.
Use the formula for average rate of reaction: Rate = Δ[H2O] / Δt. Substitute the values for Δ[H2O] and Δt to find the average rate in M/s.
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