Properties of the Equilibrium Constant Practice Test

For the equilibrium reaction $\mathrm{H_2(g) + I_2(g) \rightleftharpoons 2HI(g)}$, the equilibrium constant is $K$. What is $K_\text{new}$ for the reaction $\mathrm{2HI(g) \rightleftharpoons H_2(g) + I_2(g)}$?

For the equilibrium reaction $2\text{NO}(g)+\text{Cl}2(g)\rightleftharpoons 2\text{NOCl}(g)$, the equilibrium constant is $K$. What is $K{\text{new}}$ for the reaction $\text{NO}(g)+\tfrac{1}{2}\text{Cl}_2(g)\rightleftharpoons \text{NOCl}(g)$?