0.020 M^-1 s^-1 For second order: slope = k = (3 - 1)/100 = 0.020 M^-1 s^-1.

Concentration Changes Over Time

AP Chemistry· difficulty 3/5

1/[A] vs t is linear: at t = 0, 1/[A] = 1.0 M^-1; at t = 100 s, 1/[A] = 3.0 M^-1.

What is k?

Explanation

For second order: slope = k = (3 - 1)/100 = 0.020 M^-1 s^-1.

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