Question
Give examples of first order reaction.
✓
Answer
→ Hydrogenation of ethene is an example of first order reaction.
$\begin{array}{l} C _2 H _4(g)+ H _2(g) \rightarrow C _2 H _6(g) \\ \text { Rate }= k \left[ C _2 H _4\right]\end{array}$
All natural and artificial radioactive decay of unstable nuclei take place by first order kinetics. $
\begin{array}{l}
{ }_{88}^{226} Ra \rightarrow{ }_2^4 He \ +\ { }_{86}^{222} Rn \\
\text { Rate }= k [ Ra ]
\end{array}
$
Decomposition of $N _2 O _5$ and $N _2 O$ are some more examples of first order reactions.
$\begin{array}{l} C _2 H _4(g)+ H _2(g) \rightarrow C _2 H _6(g) \\ \text { Rate }= k \left[ C _2 H _4\right]\end{array}$
All natural and artificial radioactive decay of unstable nuclei take place by first order kinetics. $
\begin{array}{l}
{ }_{88}^{226} Ra \rightarrow{ }_2^4 He \ +\ { }_{86}^{222} Rn \\
\text { Rate }= k [ Ra ]
\end{array}
$
Decomposition of $N _2 O _5$ and $N _2 O$ are some more examples of first order reactions.
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The experimental rate equation of a reaction $2 N _2 O \rightarrow 2 N _{ 2 }+ O _2$ is as follows: rate $= k \left[ N _2 O \right]$. Write the mechamism of the reaction.
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$2\text{H}_2\text{O}_2\frac{\text{I}^-}{\text{alkaline medium}}2\text{H}_2\text{O}+\text{O}_2$
the proposed mechanism is as given below:
→$2\text{H}_2\text{O}_2\frac{\text{I}^-}{\text{alkaline medium}}2\text{H}_2\text{O}+\text{O}_2$
the proposed mechanism is as given below:
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