Consider the hypothetical reaction A( g ) + 2B( g ) --> C( g ). The four contain
ID: 827410 • Letter: C
Question
Consider the hypothetical reaction A(g) + 2B(g) --> C(g). The four containers below represent this reaction being run with dif- ferent initial amounts of A and B. Assume that the volume of each container is 1.0 L. The reaction is second order with respect to A and first order with respect to B.
Based on the information presented in the problem, write the rate law for the reaction.
Which of the containers, W, X, Y, or Z, would have the greatest reaction rate? Justify your answer.
Which of the containers would have the lowest reaction rate? Explain
If the volume of the container X were increased to 2.0 L, how would the rate of the reaction in this larger container compare to the rate of reaction run in the 1.0-L container X? (Assume that the number of A and B atoms is the same in each case.)
If the temperature in container W were increased, what im- pact would this probably have on the rate of reaction? Why?
If you want to double the rate of reaction in container X, what are some things that you could do to the concentra- tion(s) of A and B?
In which container would you observe the slowest rate of formation of C?
AssumingthatAandBarenotingreatexcess,whichwould have the greater impact on the rate of reaction in container W: removing a unit of B or removing a unit of A? Explain.
Describe how the rate of consumption of A compares to the rate of consumption of B. If you cannot answer this ques- tion, what additional information do you need to provide an answer?
If the product C were removed from the container as it formed, what effect would this have on the rate of the reaction?
General Chemistry 9th Ebbing Gammon 13.27
Explanation / Answer
1- A(g) + 2B(g) -------> C(g)
rate=k[A][B]^2
2- X has the greatest reaction rate because from above rate of reaction we can saw the rate is proportinal [B]^2.
3-z has lowest reaction rate....because its rate depend only [A]
4-same , because rate of reaction dose not depend on volume.
5- the rate of reaction will increase because the collision frequency of A and B will increase after increasing the temprature.
6- increase the concentration of A by double.
7- Z container
8-removing a unit of A.
9-rate acording to A is -d[A]/dt
rate acording to B is -1/2d[B]dt
we know that concentration of [B] is double of concentration of [A]
so rate of consumption of [A]
is equal to
rate of consumption of [B]
10- nothing.