At 25�C, K = 3.7 109 L/mol, CO(g) + Cl2(g) COCl2(g) What's Kp at this temperature?

Kp = Kc (RT) ^delta n where delta n = No of gaseous product moles - no. of gaseous reactant moles that is 1 - 2 = -1, Kp= 3.7 09 ( 0.0821 x 298)^ -1 . From the units of K we understant it is Kc.