Practice Quiz

MCAS Chemistry Exam Practice

Category - Chemistry

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Which of the following correctly describes molecules of two different gases if they are at the same temperature and pressure?
  1. They must have the same mass.
  2. They must have the same velocity.
  3. They must have the same average kinetic energy.
  4. They must have the same average potential energy.
Explanation
Answer: C - They must have the same average kinetic energy.
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