k [P]x [Q]y
\(\frac{[P]^x [Q]^y}{[R]^m [S]^n}\)
\(\frac{[R]^m [S]^n}{[P]^x [Q]^y}\)
\(\frac{m[R] n[S]}{x[P] y[Q] }\)
Correct answer is C
Expression for equilibrium constant
k = \(\frac{\text{concentration of product}}{\text{concentration of reactant}}\)