alleryIf for a reaction K_p has units of atm² and Δn = 2, the relation between K_p and K_c is:
AK_p = K_c
BK_p = K_c (RT)²
CK_p = K_c / (RT)²
DK_p = K_c · R²
Answer & Solution
Correct answer: B. K_p = K_c (RT)²
1. K_p = K_c (RT)^Δn, where Δn = moles of gaseous products − reactants.
2. With Δn = 2: K_p = K_c (RT)².
3. (C) is the K_p / K_c form for Δn = −2.
_Source: syllabus Chem Ch 7 §7.4 Relation between K_p and K_c_
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