Chemistry
NULL
Medium
Question
For which system does the equilibrium constant Kc has unit of (concentration)-1__________________?
A
N2 + 3H2 ⇌ 2NH3
B
H2 + I2 ⇌ 2HI
C
2NO2 ⇌ N2O4
✓ Official correct answer
D
PCl5 ⇌ PCl3 + Cl2
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A
N2 + 3H2 ⇌ 2NH3
No member explanations yet for this option.
B
H2 + I2 ⇌ 2HI
No member explanations yet for this option.
C
2NO2 ⇌ N2O4
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D
PCl5 ⇌ PCl3 + Cl2
No member explanations yet for this option.
Explanation
For 2NO2 ⇌ N2O4, the change in gas moles (Δn = 1 - 2 = -1) gives Kc units of (concentration)^-1, unlike the other listed equilibria.
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