What is surface energy?
Q: What is surface energy?
A: Surface energy is the attraction between molecules in liquids that keeps them together.
Q: What causes negative potential energy for a molecule in a liquid?
A: The attraction between the molecule and surrounding molecules in the liquid causes negative potential energy.
Q: What does the amount of heat required for evaporation depend on?
A: The amount of heat required for evaporation depends on the number and distribution of surrounding molecules.
Q: Why does the required heat of evaporation for some liquids, like water, need to be quite large?
A: The required heat of evaporation for some liquids needs to be quite large because the molecules need to be collected and dispersed far away from each other to evaporate.
Q: What is the heat of evaporation for water?
A: The heat of evaporation for water is 40 kJ/mol.
Q: Does the intermolecular distance in liquids allow for attraction to all surrounding molecules?
A: Yes, the intermolecular distance in liquids allows for attraction to all surrounding molecules.
Q: How does the distribution of molecules affect the potential energy of the surrounding molecules in a liquid?
A: The potential energy of the surrounding molecules in a liquid is affected by the distribution of molecules because the heat required for evaporation depends on the number and distribution of the surrounding molecules.
