Potassium Is Produced Industrially by the Reaction Na(l) + K⁺(l) $\degree$

Essay

Potassium is produced industrially by the reaction Na(l) + K⁺(l) Na⁺(l) + K(g). The reaction is carried out at 850 $\degree$ C, but the equilibrium K_c constant strongly favors the reactants. Explain how the conditions are manipulated to ensure a good yield of potassium despite the small value of K_c.