Question

Find the standard entropy change (ΔS°) for the formation of 1 mole of PCl5(g) from its elements.

Answer 1

The standard entropy change (ΔS°) for the formation of 1 mole of PCl5(g) from its elements can be calculated using the standard entropies of the products and the reactants.

Step-by-step explanation:

The standard entropy change (ΔS°) for the formation of 1 mole of PCl5(g) from its elements can be calculated using the standard entropies of the products and the reactants. The equation for the formation of PCl5(g) from its elements is:

PCl5(g) = P(s) + 5Cl(s)

The standard entropy change can be calculated as:

ΔS° = (ΣS°products) - (ΣS°reactants)

Using the tabulated standard entropies at 298.15 K, the entropy change can be determined.