J.R. S. answered 02/10/21
Ph.D. University Professor with 10+ years Tutoring Experience
Co(NH3)6(OH)3(s) <==> Co(OH)3(s) + 6NH3(g) NOTE 6 moles of gas on right, no moles gas on left !!
Kp = Kc(RT)∆n where ∆n is the change in number of moles = 6 - 0 = 6
R = gas constant = 0.0821 Latm/Kmol
T = temp in K = 600.00 + 273.15 = 873.15K
Kp = 32.0 (0.0821*873.15K)6
Kp = 4.3x1012