Questions: PCl5 → PCl3 + Cl2

Transcript text: $\mathrm{PCl}_{5} \rightarrow \mathrm{PCl}_{3}+\mathrm{Cl}_{2}$

Solution

Solution Steps

Step 1: Understanding the Chemical Equation

The given chemical equation is:

\[ \hat{0} \mathrm{PCl}_{5} \rightarrow \hat{\mathrm{0}} \mathrm{PCl}_{3} + \hat{\mathrm{0}} \mathrm{Cl}_{2} \]

This represents the decomposition of phosphorus pentachloride ($\mathrm{PCl}_5$) into phosphorus trichloride ($\mathrm{PCl}_3$) and chlorine gas ($\mathrm{Cl}_2$).

Step 2: Analyzing the Stoichiometry

In the chemical equation, the stoichiometry is straightforward. One mole of $\mathrm{PCl}_5$ decomposes to form one mole of $\mathrm{PCl}_3$ and one mole of $\mathrm{Cl}_2$. The stoichiometric coefficients are all 1, indicating a 1:1:1 ratio.

Step 3: Identifying the Reaction Type

This reaction is a decomposition reaction, where a single compound ($\mathrm{PCl}_5$) breaks down into two simpler substances ($\mathrm{PCl}_3$ and $\mathrm{Cl}_2$).

Final Answer

The chemical equation represents the decomposition of phosphorus pentachloride into phosphorus trichloride and chlorine gas, with a stoichiometric ratio of 1:1:1. The reaction is a decomposition reaction.

\[ \boxed{\mathrm{PCl}_5 \rightarrow \mathrm{PCl}_3 + \mathrm{Cl}_2} \]

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