Ammonia Can Be Formed from the Reaction of Hydrogen and Nitrogen

Ammonia can be formed from the reaction of hydrogen and nitrogen gas by the following reaction
N₂(g) + 3H₂(g) → 2NH₃(g)
At 127°C an equilibrium mixture is found to have a partial pressure of 103 kPa for NH₃, a partial pressure of 2030 kPa for N₂, and a partial pressure of 10 kPa for H₂. If the volume of the container is 10 L, how many moles of NH₃ are there?

A) 0.31
B) 0.52
C) 0.98
D) 6.4
E) 20.0