Evaporation Concepts Quiz

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Questions and Answers

What is the process by which molecules on the surface of a liquid break away and go into the gas phase?

Evaporation

In a closed container, what is established when molecules return to the liquid at the same rate as they leave it?

Equilibrium between liquid and vapor

What depends on temperature in the same way for molecules in liquids as it does for molecules in gases?

Kinetic energies

At a lower temperature, why is evaporation slower and the equilibrium vapor pressure lower?

A smaller fraction of the molecules have the energy required to escape from the liquid Signup and view all the answers

What must molecules possess to break away from the liquid during evaporation?

At least some minimum kinetic energy Signup and view all the answers

What is evaporation?

The process by which molecules on the surface of a liquid break away and go into the gas phase Signup and view all the answers

What happens in a closed container during equilibrium?

Molecules return to the liquid at the same rate as they leave it Signup and view all the answers

What affects the kinetic energies of molecules in liquids?

Temperature Signup and view all the answers

How does temperature affect evaporation?

At higher temperatures, a greater fraction of molecules have the energy required to escape from the liquid Signup and view all the answers

What is the relationship between lower temperature and evaporation?

At lower temperature, a smaller fraction of the molecules have the energy required to escape from the liquid, so evaporation is slower Signup and view all the answers

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Evaporation Concepts Quiz

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Questions and Answers

What is the process by which molecules on the surface of a liquid break away and go into the gas phase?

In a closed container, what is established when molecules return to the liquid at the same rate as they leave it?

What depends on temperature in the same way for molecules in liquids as it does for molecules in gases?

At a lower temperature, why is evaporation slower and the equilibrium vapor pressure lower?

What must molecules possess to break away from the liquid during evaporation?

What is evaporation?

What happens in a closed container during equilibrium?

What affects the kinetic energies of molecules in liquids?

How does temperature affect evaporation?

What is the relationship between lower temperature and evaporation?

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