N2O4⇌ 2NO2
For the above reaction, which of the Following expression of Kc correct :
Kc = [ N2O4]/[ NO 2]2
Kc = [ N2O4]/ [NO 2]
Kc = [ N2O]2/[ N2O 4]
Kc = [ N2O4]/[ N O 2]