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In common terminology, the term volume fraction is used synonymously with mole fraction.thevinciz said:Homework Statement
View attachment 225654
Homework Equations
The Attempt at a Solution
I have tried to change mass of oxygen into mol and I got ratio of oxygen and nitrogen. And I don't really know what to do.
phoenix95 said:Well done.
Now try using Ideal gas law. Use the mole ratio you obtained.
Chestermiller said:In common terminology, the term volume fraction is used synonymously with mole fraction.
Let's see the details of what you did.thevinciz said:Do you mean mol of oxygen / mol of nitrogen is equal to volume of oxygen / volume of nitrogen? But I still don't know how to solve.
Chestermiller said:Let's see the details of what you did.
This is incorrect. If you take as a basis 1 kg of gas mixture, what is the mass of oxygen in the mixture? What is the mass of nitrogen in the mixture? What are the number of moles of oxygen in the mixture? What are the number of moles of nitrogen in the mixture? What is the mole fraction oxygen? What is the mole fraction nitrogen?thevinciz said:I got molO2/molN2 = 2.8/12.8 and from your comment I understand that volumeO2/volumeN2 = 2.8/12.8
Chestermiller said:This is incorrect. If you take as a basis 1 kg of gas mixture, what is the mass of oxygen in the mixture? What is the mass of nitrogen in the mixture? What are the number of moles of oxygen in the mixture? What are the number of moles of nitrogen in the mixture? What is the mole fraction oxygen? What is the mole fraction nitrogen?
thevinciz said:In 1kg ,mass of O2 = 0.2 kg
mass of N2 = 0.8 kg
mole of O2 = 12.5
Chestermiller said:Moles O2 = 6.25
Chestermiller said:Moles O2 = 6.25
The volume of gas refers to the amount of space that a gas occupies. It is typically measured in units such as liters or cubic meters.
The volume of gas can be calculated using the ideal gas law, which takes into account the temperature, pressure, and number of moles of gas present. It can also be measured directly using specialized equipment such as a gas syringe or graduated cylinder.
Knowing the volume of gas is important in many scientific and industrial applications. It can help determine the amount of gas present in a container, the rate of gas production or consumption, and the efficiency of gas reactions.
The volume of gas can be affected by changes in temperature and pressure. It can also be influenced by the type of gas and the presence of other substances in the container.
The volume of gas can be controlled by adjusting the temperature and pressure of the container it is in. It can also be controlled by changing the amount of gas present through addition or removal of gas molecules.