Problem: Liquids have a higher vapor pressure at a higher temperature because1. the molar enthalpy of vaporization is decreased as the temperature is raised.2. the more rapidly moving molecules in the gas phase exert a higher pressure on the container walls.3. a higher temperature is required to supply the heat of vaporization of the liquid.4. more molecules in the liquid have enough kinetic energy to escape from the surface.5. the higher temperature may exceed the critical temperature of the liquid.

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Problem Details

Liquids have a higher vapor pressure at a higher temperature because

1. the molar enthalpy of vaporization is decreased as the temperature is raised.

2. the more rapidly moving molecules in the gas phase exert a higher pressure on the container walls.

3. a higher temperature is required to supply the heat of vaporization of the liquid.

4. more molecules in the liquid have enough kinetic energy to escape from the surface.

5. the higher temperature may exceed the critical temperature of the liquid.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Kinetic Molecular Theory concept. You can view video lessons to learn Kinetic Molecular Theory. Or if you need more Kinetic Molecular Theory practice, you can also practice Kinetic Molecular Theory practice problems.

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Our tutors rated the difficulty ofLiquids have a higher vapor pressure at a higher temperature...as medium difficulty.

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