Nitrogen and Oxygen Gases May React to Form Nitrogen Monoxide $\rightleftharpoons$

question 29

Multiple Choice

Nitrogen and oxygen gases may react to form nitrogen monoxide. At 1500 °C, K_c equals 1.0 × 10?⁵. N₂(g) + O₂(g) $\rightleftharpoons$ 2 NO(g)
If 0.030 mol N₂ and 0.030 mol O₂ are sealed in a 1.0 L flask at 1500 °C, what is the concentration of NO(g) when equilibrium is established?

• A) 3.0 × 10?⁷ M
• B) 4.7 × 10?⁵ M
• C) 9.5 × 10?⁵ M
• D) 3.0 × 10?² M
• E) 9.1 × 101 M

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