In a mixture of hydrogen and oxygen gases at the same temperature, which molecules move faster? Why?
To explain: The molecules that move faster in a mixture of hydrogen and oxygen gases at the same temperature.
Explanation of Solution
Introduction:
Kinetic energy is given by,
Hence, kinetic energy depends on mass and speed of a body.
When hydrogen and oxygen gases are mixed at the same temperature, they attain the same kinetic energy. Now, hydrogen is lighter than oxygen. For them to have the same kinetic energy, hydrogen molecules should have a greater velocity than oxygen molecules.
Conclusion:
Hydrogen molecules move faster in a mixture of oxygen and hydrogen molecules.
Chapter 22 Solutions
Conceptual Physics: The High School Physics Program
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