Consider the reaction: A( g )+1/2B( g )?2C( g ). Part A Determine the expression

Question

Consider the reaction: A(g)+1/2B(g)?2C(g).

Part A

Determine the expression for the rate of the reaction with respect to each of the reactants and products.

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Part B

When C is increasing at a rate of 2.0×10?2 M?s?1 , how fast is B decreasing?

Express your answer using two significant figures.

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Part C

How fast is A decreasing?

Express your answer using two significant figures.

Consider the reaction: A(g)+1/2B(g)?2C(g).

Part A

Determine the expression for the rate of the reaction with respect to each of the reactants and products.

Determine the expression for the rate of the reaction with respect to each of the reactants and products. Rate=??[A]?t=?2?[B]?t=12?[C]?t Rate=?2?[A]?t=??[B]?t=12?[C]?t Rate=?2?[A]?t=?12?[B]?t=?[C]?t Rate=?12?[A]?t=?2?[B]?t=?[C]?t

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Part B

When C is increasing at a rate of 2.0×10?2 M?s?1 , how fast is B decreasing?

Express your answer using two significant figures.

?[B]?t= M?s?1

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Part C

How fast is A decreasing?

Express your answer using two significant figures.

?[A]?t=

Explanation / Answer

part A)  Rate=??[A]?t=?2?[B]?t=1/2?[C]?t

part B)  ?[C]?t = 2.0 x 10-2 M s-1

2?[B]?t =  1/2?[C]?t

?[B]?t = 1/4 ?[C]?t

?[B]?t =1/4 (2.0 x 10-2)

?[B]?t = 5.0 x 10-3 M s-1

C)

?[A]?t =  1/2?[C]?t

?[A]?t =1/2 (2.0 x 10-2)

?[A]?t = 1.0 x 10-2 M s-1

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