J.R. S. answered 11/09/19
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2A(g) + B(s) <==> 2C(s) + D(g)
Kc = Kp / (RT)∆n
R = gas constant = 0.0821 Latm/Kmol
T = temperature = 310K
∆n = change in number of moles from reactant to product side = 1-2 = -1
Kc = 947 / (0.0821 • 310)-1
Kc = 947 / 0.0393
Kc = 2.4x104