CH-572
Diffusion
Chemistry · Secondary 3 · Hard · Diffusion
In an experiment, 25.0 cm³ of hydrogen gas is collected over water at room temperature. The same experiment is repeated with oxygen gas under the same conditions. Which statement about the rate of diffusion of the two gases is correct?
- Hydrogen diffuses slower than oxygen because it is less dense.
- Hydrogen and oxygen diffuse at the same rate because both are gases.
- Hydrogen diffuses faster than oxygen because it has a smaller relative molecular mass.
- Oxygen diffuses faster than hydrogen because it has more particles per mole.
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