Question

One mole of N₂ and 3 moles of PCl₅ are placed in a 100 L vessel heated to 227°C. The equilibrium pressure is 2.05 atm. Assuming ideal behaviour, calculate the degree of dissociation for PCl₅ and K_p for the reaction,

PCl₅(g) ⇋ PCl₃(g) + Cl₂(g)

Answer 1

Given, total pressure at equilibrium = 2.05atm now, at equilibrium

Comments

How you added one to the total moles

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As given 1 mole of N2 is added for total moles of equilibrium.