The tabulated data show the concentration of AB versus time for this reaction: AB(g) h

Chapter 13, Problem 47

(choose chapter or problem)

The tabulated data show the concentration of AB versus time for this reaction:

\(\mathrm{AB}(g) \longrightarrow \mathrm{A}(g)+\mathrm{B}(g)\)

\(\begin{array}{cc}
\text { Time (s) } & {[\mathbf{A B}] \mathbf{( M )}} \\
\hline 0 & 0.950 \\
\hline 50 & 0.459 \\
\hline 100 & 0.302 \\
\hline 150 & 0.225 \\
\hline 200 & 0.180 \\
\hline 250 & 0.149 \\
\hline 300 & 0.128 \\
\hline 350 & 0.112 \\
\hline 400 & 0.0994 \\
\hline 450 & 0.0894 \\
\hline 500 & 0.0812 \\
\hline
\end{array}\)

Determine the order of the reaction and the value of the rate constant. Predict the concentration of AB at 25 s.

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