Textbook Question
Consider the reaction: C4H8( g) → 2 C2H4( g) The tabulated data were collected for the concentration of C2H4 as a function of time: a. What is the average rate of the reaction between 0 and 10 s? Between 40 and 50 s?
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Ch.14 - Chemical Kinetics
Chapter 14, Problem 33
Consider the reaction: H2(g) + Br2(g) → 2 HBr(g). The graph shows the concentration of Br2 as a function of time. a. Use the graph to calculate each quantity: (ii) the instantaneous rate of the reaction at 25 s.
Verified step by step guidance1
<insert step 1> Identify the section of the graph where the concentration of Br2 is changing around 25 seconds.>
<insert step 2> Determine the slope of the tangent line to the curve at 25 seconds. This slope represents the rate of change of Br2 concentration with respect to time.>
<insert step 3> Use the formula for the rate of reaction: Rate = -Δ[Br2]/Δt, where Δ[Br2] is the change in concentration of Br2 and Δt is the change in time.>
<insert step 4> Calculate the instantaneous rate by substituting the values obtained from the slope of the tangent line into the rate formula.>
<insert step 5> Remember that the rate of disappearance of Br2 is equal to the rate of formation of HBr divided by 2, due to the stoichiometry of the reaction.>
Related Practice
Textbook Question
Consider the reaction: NO2(g) → NO(g) + 1/2 O2(g) The tabulated data were collected for the concentration of NO2 as a function of time: a. What is the average rate of the reaction between 10 and 20 s? Between 50 and 60 s?
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Textbook Question
Consider the reaction: NO2(g) → NO(g) + 1/2 O2( g) The tabulated data were collected for the concentration of NO2 as a function of time: b. What is the rate of formation of O2 between 50 and 60 s?
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Textbook Question
Consider the reaction: H2(g) + Br2(g) → 2 HBr(g) The graph shows the concentration of Br2 as a function of time.
a. Use the graph to calculate each quantity: (i) the average rate of the reaction between 0 and 25 s
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Textbook Question
Consider the reaction: H2(g) + Br2(g) → 2 HBr(g) The graph shows the concentration of Br2 as a function of time. a. Use the graph to calculate each quantity: (iii) the instantaneous rate of formation of HBr at 50 s
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1
rank
Textbook Question
Consider the reaction: H2( g) + Br2( g) → 2 HBr( g) The graph shows the concentration of Br2 as a function of time.
b. Make a rough sketch of a curve representing the concentration of HBr as a function of time. Assume that the initial concentration of HBr is zero
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