An Important Reaction Sequence in the Industrial Production of Nitric

question 23

Multiple Choice

An important reaction sequence in the industrial production of nitric acid is the following: N₂(g) + 3H₂(g)  2NH₃(g)
4NH₃(g) + 5O₂(g)  4NO(g) + 6H₂O(l)
Starting from 20.0 mol of nitrogen gas in the first reaction, how many moles of oxygen gas are required in the second one?

• A) 12.5 mol O₂
• B) 20.0 mol O₂
• C) 25.0 mol O₂
• D) 50.0 mol O₂
• E)100. mol O₂

---

Definitions:

Cardiovascular

Pertaining to the cardiovascular system, which includes the heart and the network of arteries, veins, and capillaries that circulate blood throughout the body.

Nutrients

Substances required by the body for growth, energy, repair, and maintenance.

Nervous

Relating to the nervous system, which is comprised of the brain, spinal cord, and a network of neurons that convey signals throughout the body.

Lymphatic

Relating to the lymph system, which is part of the immune system and helps remove waste and maintain fluid balance in the body.