Relation between Kp and Kc for a gas reaction with Δn_gas = change in moles of gas:
AKp = Kc/RT
BKp = Kc
CKp = Kc (RT)^Δn
DKp = (RT)/Kc
Answer & Solution
Correct answer: C. Kp = Kc (RT)^Δn
Kp = Kc (RT)^Δn_gas. When Δn = 0 (equal gas moles on both sides), Kp = Kc. Pressure in atm, R = 0.0821 L·atm/(mol·K), T in Kelvin.
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