Question

Calculate the equilibrium constant kc for the reaction pcl5(g)⇌pcl3(g)+cl2(g)

Answer 1

Answer:

PCl5(g) ⇋ PCl3(g) + Cl2(g)

ΔH = ΔE + Δng RT

Δng = Change in number of moles of product and reactant species.

Since Δng = +ve, hence ΔH = +ve

also one mole of PCl5 is dissociated into two moles of PCl5 and Cl2 in the same phase.

Therefore, ΔS = Sproduct - Sreactant ΔS = +ve

Answer 2

Answer:

∆S = Sproduct - Sreactent

= ∆S = +ve