COMEDK · Chemistry · 7. Chemical Equilibrium
One mole of \(\mathrm{PCl}_{5}\) is heated in a closed \(2 \mathrm{dm}^{3}\) vessel. At equilibrium \(40 \% \mathrm{PCl}_{5}\) is dissociated. Calculate the equilibrium constant.
- A \(0.066\)
- B \(0.154\)
- C \(0.133\)
- D \(0.266\)
Answer & Solution
Correct Answer
(C) \(0.133\)
Step-by-step Solution
Detailed explanation
\(\quad \mathrm{PCl}_{5} \rightleftharpoons \mathrm{PCl}_{3}+\mathrm{Cl}_{2}\) Initial conc. \(\frac{1}{2}=0.5 \quad 0 \quad 0\) Equili. conc. \(\frac{1-0.4}{2}=\frac{0.6}{2} \quad \frac{0.4}{2} \quad \frac{0.4}{2}\)…
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