Exam-style question
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How does increasing the temperature of a gas affect its pressure if the volume is held constant?.
- A.The pressure decreases
- B.The pressure increases
- C.The pressure remains the same
- D.The pressure becomes zero
Model answer
What a good answer should say
- The pressure increases
Explanation
Why this works
According to Gay-Lussac's law, if the volume of a gas is constant, increasing the temperature will increase the pressure. This is because the kinetic energy of the gas molecules increases, leading to more frequent and forceful collisions with the walls of the container.
Common mistake
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