At 600 K and 5.0 bar, the degree of dissociation of PCl5(g) is 0.920. Phosphorus pentachloride thermally disassociates according to following reaction: PCl5(g) ⇌ PCl3(g) + Cl2(g) a) What is the degree of dissociation at 600 K and 1.0 bar of pressure?   b) If the degree of dissociation is 0.80 at 520 K and 1.0 bar, what are ∆G, ∆H and ∆S at this temperature? You can assume ∆H and ∆S are independent of temperature over this range.

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.