A gas mixture calculation
Partial Pressure of Gas Y
A gas cylinder contains 2.0 mol of gas X and 6.0 mol of gas Y at a total pressure of 2.1 atm. What is the partial pressure of gas Y?
The partial pressure of gas Y is 1.6 atm
Calculation
- Total pressure = partial pressure of gas Y + partial pressure of gas X
- Partial pressure of gas Y = moles of gas Y / total moles x total mole
Moles of gas Y = 6.0 moles
Total moles = 6.0 + 2.0 = 8 moles
Total pressure = 2.1 atm
- Partial pressure of gas Y is therefore:
- = 6.0 moles / 8.0 moles x 2.1 atm = 1.6 atm