Consider the reaction: P(s) + 5/2 Cl2(g)PCl5(g) Write the equilibrium constant for this reaction in terms of the equilibrium constants, Ka and Kb, for reactions a and b below: a.) P(s) + 3/2 Cl2(g) PCl3(g) Ka b.) PCl3(g) + Cl2(g) PCl5(g) Kb

The equilibrium constant for the overall reaction is

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios.

a)

b)

For overall reaction on adding a and b we get c

c)

The equilibrium constant for the overall reaction is

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

b is the correct answer

mark me brainliest and hope this