
Equal Number of molecules of hydrogen and oxygen are contained in a vessel at one atmospheric pressure. The ratio of the collision frequency hydrogen molecules to the oxygen molecules on the container:
Answer
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Hint:According to the kinetic molecular theory, the collision frequency is equal to the root mean square velocity of the molecules divided by their mean free path. Collision frequency is denoted by symbol
Formula used:
.
Where is the collision frequency, is the root-mean square velocity of molecules, and is the mean free path.
Complete step by step answer:
In the given question it is given that equal numbers of molecules and oxygen are contained at one atmospheric pressure. We have to calculate the ratio of the collision frequency hydrogen molecules to the oxygen molecules on the container.
Let, the collision frequency of Hydrogen molecules and collision frequency of oxygen molecules have molar mass and of hydrogen and oxygen molecules respectively.
By using above formula of collision frequency we have the collision frequency of hydrogen is
Similarly, the collision frequency of Oxygen molecules is
Now the ratio of the collision frequency of hydrogen molecules to the oxygen molecules is
We know the molar mass of oxygen molecules is and molar mass of hydrogen is .Put the value of molar mass of both the molecules in above equation, we get
Thus, the ratio of collision frequency of hydrogen molecules to oxygen molecules is .
So, the Correct option is
Additional information:
Mean free path: Mean free path is the average distance between two collisions for a gas may be estimated from kinetic theory.
Note:
By above formula used for collision frequency . It may conclude that collision frequency is mainly depending on temperature and molar mass of gas present in the container. Collision frequency is inversely proportional to molar mass of gas.
Formula used:
Where
Complete step by step answer:
In the given question it is given that equal numbers of molecules and oxygen are contained at one atmospheric pressure. We have to calculate the ratio of the collision frequency hydrogen molecules to the oxygen molecules on the container.
Let, the collision frequency of Hydrogen molecules
By using above formula of collision frequency we have the collision frequency of hydrogen is
Similarly, the collision frequency of Oxygen molecules is
Now the ratio of the collision frequency of hydrogen molecules to the oxygen molecules is
We know the molar mass of oxygen molecules is
Thus, the ratio of collision frequency of hydrogen molecules to oxygen molecules is
So, the Correct option is
Additional information:
Mean free path: Mean free path is the average distance between two collisions for a gas may be estimated from kinetic theory.
Note:
By above formula used for collision frequency
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