Consider the Reaction 2NH₃(g) → N₂(g) + 3H₂(g)

Multiple Choice

Consider the reaction 2NH₃(g) → N₂(g) + 3H₂(g)
If the rate Δ[H₂]/Δt is 0.030 mol L⁻¹s⁻¹, then Δ[NH₃ ]/Δt is

A) −0.045 mol L ⁻¹ s ⁻¹
B) −0.030 mol L ⁻¹ s ⁻¹
C) −0.020 mol L ⁻¹ s ⁻¹
D) −0.010 mol L ⁻¹ s ⁻¹
E) None of these choices are correct.