Two moles of `PCl_(5)` were heated at `327^(@)C` in a closed two litre vessel and when equilibrium was reached, `PCl_(5)` was found to be 40% dissocia

Question

Two moles of `PCl_(5)` were heated at `327^(@)C` in a closed two litre vessel and when equilibrium was reached, `PCl_(5)` was found to be 40% dissocia

Two moles of `PCl_(5)` were heated at `327^(@)C` in a closed two litre vessel and when equilibrium was reached, `PCl_(5)` was found to be 40% dissociated into `PCl_(3)` and `Cl_(2)`
The equilibrium constant `K_(rho)` for the above reaction is (approx)
A. 13.14 `atm^(-1)`
B. 13.14 atm
C. 6.52 atm
D. 6.52 `atm^(-1)`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - D
`-underset(..)overset(..)(O)-CH_(3)` increases the `e^(-)` density in ring due to +M.
`-underset(..)overset(..)(O)-H` increases the `e^(-)` density in ring due to +M.
`-underset(..)overset(..)(O)-overset(O)overset(||)(C)-CH_(3)` increases the `e^(-)` density in ring due to +M.
-CN is a strong `e^(-)` withdrawing group, so it decreases the `e^(-)` density from the ring.