The Haber reaction for the manufacture of ammonia is: N2 + 3H2 → 2NH3 Without doing any experiments, which of the following can you say MUST be true?

Question

True/ False The activation energy is positive.

True/ False Disappearance rate of N2 = 3 (Disappearance rate of H2).

True/ False The reaction is first order in N2.

True/ False Disappearance rate of H2 = 3 (Disappearance rate of N2).

True/ False The reaction is not an elementary reaction.

True/ False Δ[H2]/Δt will have a positive value.

True/ False Reaction rate = -Δ[N2]/Δt.

Answer 1

Disappearance rate of H2 = 3 (Disappearance rate of N2) is TRUE

Reaction rate = -Δ[N2]/Δt is TRUE for the initial rate but probably not what they're looking for.