The decomposition of ammonia on a tungsten surface at 1100 °C NH31/2 N,+ 3/2 H, is zero order in NH3. In one experiment, when the initial concentration of NH3 was 3.00×10³ M, the concentration of NH3 dropped to 5.91×10* M after 506 seconds had passed. Based on these data, the rate constant for the reaction is Ms!.

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Chapter1: Chemical Foundations
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**The decomposition of ammonia on a tungsten surface at 1100 °C:**

\[ \text{NH}_3 \rightarrow \frac{1}{2} \text{N}_2 + \frac{3}{2} \text{H}_2 \]

is **zero order** in \(\text{NH}_3\).

In one experiment, when the initial concentration of \(\text{NH}_3\) was \(3.00 \times 10^{-3}\) M, the concentration of \(\text{NH}_3\) dropped to \(5.91 \times 10^{-4}\) M after 506 seconds had passed.

Based on these data, the rate constant for the reaction is \(\_\_\_\_\_\) M s\(^{-1}\).
Transcribed Image Text:**The decomposition of ammonia on a tungsten surface at 1100 °C:** \[ \text{NH}_3 \rightarrow \frac{1}{2} \text{N}_2 + \frac{3}{2} \text{H}_2 \] is **zero order** in \(\text{NH}_3\). In one experiment, when the initial concentration of \(\text{NH}_3\) was \(3.00 \times 10^{-3}\) M, the concentration of \(\text{NH}_3\) dropped to \(5.91 \times 10^{-4}\) M after 506 seconds had passed. Based on these data, the rate constant for the reaction is \(\_\_\_\_\_\) M s\(^{-1}\).
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