What happens to a liquid when pressure increases at constant temperature according to the material?

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Prepare for the SkillCat EPA Type 2 Test with interactive flashcards and multiple-choice questions. Each question is accompanied by hints and explanations. Get ready to pass your exam!

Multiple Choice

What happens to a liquid when pressure increases at constant temperature according to the material?

Explanation:
When pressure is increased at a constant temperature, the system tends to favor the phase with greater density. If the solid form is denser than the liquid at that temperature, applying more pressure pushes the substance into the solid phase. That’s why, in this context, the liquid becomes a solid as pressure rises. Note: there are exceptions, like water, where ice is less dense than liquid water, so increasing pressure can melt ice instead. But for many materials, the denser solid is favored under higher pressure, leading to solidification.

When pressure is increased at a constant temperature, the system tends to favor the phase with greater density. If the solid form is denser than the liquid at that temperature, applying more pressure pushes the substance into the solid phase. That’s why, in this context, the liquid becomes a solid as pressure rises. Note: there are exceptions, like water, where ice is less dense than liquid water, so increasing pressure can melt ice instead. But for many materials, the denser solid is favored under higher pressure, leading to solidification.

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