The Oxidation of Nitric Oxide to Nitrogen Dioxide Is

Multiple Choice

The oxidation of nitric oxide to nitrogen dioxide is
2NO(g) + O₂(g) → 2NO₂(g)
If 100.0 mL of NO (at STP) reacts with 400.0 mL of O₂ at STP, calculate the partial pressure of NO₂ in the final reaction mixture.

A) 0.222 atm
B) 0.286 atm
C) 0.333 atm
D) 0.250 atm
E) 1.00 atm