AP Chemistrymediummcq1 pt

In an ICE table for N₂ + 3H₂ ⇌ 2NH₃ starting with 1.0 M N₂ and 1.0 M H₂, what are the equilibrium expressions?

A.[N₂] = 1.0 − x, [H₂] = 1.0 − 3x, [NH₃] = 2x
B.[N₂] = 1.0 − x, [H₂] = 1.0 − x, [NH₃] = 2x
C.[N₂] = 1.0 − 3x, [H₂] = 1.0 − x, [NH₃] = 2x
D.[N₂] = 1.0 − x, [H₂] = 1.0 − 3x, [NH₃] = x

Explanation

Core Concept

Changes follow coefficients: N₂ loses x, H₂ loses 3x, NH₃ gains 2x. The 1:3:2 ratios must appear in the Change row.

Correct Answer

A[N₂] = 1.0 − x, [H₂] = 1.0 − 3x, [NH₃] = 2x

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