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Per NCERT §6.4.1, the units of Kp for N₂O₄(g) ⇌ 2 NO₂(g) (when partial pressures are in bar) are which?
Abar⁻¹
Bdimensionless only
Cbar
Dmol L⁻¹
Answer & Solution
Correct answer: C. bar
NCERT §6.4.1 (units box): N₂O₄ → 2NO₂ has Δn=+1; Kp has units of bar (numerator has one extra power).
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