What is the expression for the following reaction: Ti(s)+2Cl 2(g)⇌TiCl4(l)?
a) K c=[TiCl 4]/[Ti][Cl 2 ] 2
b) K c=[Ti][Cl 2 ] 2/[TiCl 4]
c) K c=[Ti][Cl 2]/[TiCl 4] 2
d) K c=[TiCl 4 ] 2/[Ti][Cl 2]