09 Question (2 points)

1st attempt

The production of NH3 is necessary for fertilizer production. Commercially, it is performed in the presence of a metal. The reaction in

the presence of ruthenium proceeds through the following steps:

Step 1:

N₂(g) +2Ru(s) →→2RuN(s)

Step 2:

2RuN (s) + 3H₂(g) -

→→→ 2NH3(g) + 2Ru(s)

Step 1 is pseudo-first order with a rate law of Rate = (0.748 min¹) [N₂]. What is the half-life of N₂ in the presence of Ru?

min

What role does Ru have in this reaction?

Choose one:

See Periodic Table

Reactant

O Product

O Catalyst

O Intermediate