Partial Pressure of Ammonia Gas Calculation

What is the partial pressure of ammonia gas in the mixture?

If the individual pressures of nitrogen and hydrogen are given as 0.26 atm and 0.28 atm respectively, and the total pressure is 0.90 atm, what is the partial pressure of ammonia?

Answer:

Partial pressure of ammonia gas will be 0.36 atm.

When dealing with a mixture of gases, such as nitrogen, hydrogen, and ammonia, it is important to calculate the partial pressures of each gas component. In this scenario, the partial pressure of ammonia can be determined by adding the known partial pressures of nitrogen and hydrogen, and then subtracting the total pressure from the sum.

The formula used for this calculation is [tex]\chi_{A} + \chi_{B} + \chi_{AB} = \chi_{total}[/tex], where [tex]\chi[/tex] represents the partial pressure. By substituting the given values into the formula, we can solve for the partial pressure of ammonia.

Given:

[tex]\chi_{N_{2}} = 0.26 atm[/tex]

[tex]\chi_{H_{2}} = 0.28 atm[/tex]

[tex]\chi_{NH_{3}} = ?[/tex]

[tex]\chi_{Total} = 0.90 atm[/tex]

By using the formula and substituting the values:

0.26 + 0.28 + [tex]\chi_{NH_{3}}[/tex] = 0.90

[tex]\chi_{NH_{3}} = 0.36 atm[/tex]

Therefore, the partial pressure of ammonia gas in the mixture is 0.36 atm.