Nitrogen and Oxygen Gases May React to Form Nitrogen Monoxide

question 38

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) 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

---

Definitions:

Variable Manufacturing Overhead

Costs that vary in total in direct proportion to changes in the volume of production, such as indirect materials and utility costs directly tied to production.

Raw Materials

The basic materials from which a product is made, prior to any processing or manufacturing.

Price Variance

The difference between the actual price paid for something and its standard or expected price.

Labor Efficiency Variance

The difference between the actual hours worked and the standard hours allowed for the work done, multiplied by the standard labor rate.