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When water molecules at the surface gain sufficient energy they can escape in the atmosphere. Evaporation (not vaporization) occur at any temperature; a higher temperature increase the rate of evaporation. The energy of water molecules increase by a temperature increase and some molecules at the surface can escape in the atmosphere.
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∙ 6y ago
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What happens to the mass of a substance as the temperature is increased?
The temperature of a substance has no effect on its mass.UNLESS ... part of it evaporates and blows away, or melts in a puddle and runs off the edge of the table.As long as all of the substance stays there, its mass doesn't change, no matter how hot or cold it gets.
What happens to the power used when the time is shorter?
the liquid in it evaporates slowly
What happens to the molecular motion of a liquid as it freezes?
As the temperature of a liquid substance lowers, the molecules and atoms making up the substance slow down their movement. The also pack closer together, making the substance more rigid, turning it into a solid.
What happens to the power when the time is shorter?
the liquid in it evaporates slowly
What happens to the energy when a material evaporates or melts?
it gets melted!
What happens to solute molecules when the solvent evaporates or boils?
once the molecules evaporates or boils that there would be less of an amount of the component in the solution.
What happens when a substance changes from a liquid to a vapor?
It evaporates?
When a substance evaporates what happens to its mass?
Its mass is unchanged.
Why is there no chemical equation to describe what happens when water evaporates?
That's because there is no chemical change. In most cases, there is no chemical change when a substance evaporates. The exception is very long molecules, which may break apart during evaporation.
What happen to a substance when it is heated?
The velocity of the atoms/molecules (that the substance is made of) increase.
What happens to water molecules as water evaporates?
The hydrogen bonds between the water molecules in the liquid are broken.
What happens to molecules when a substance changes from a liquid to a gas?
they get further apart
What happens to the molecules of a substance as it moves from a liquid to a solid?
use your book
What happens to the molecules of a substance when it is melted?
the molecules vibrate, faster and faster as the heat increases then they become disordered
What happens to atoms of A substance when heat is added?
When heat is added to a substance, the molecules and atoms vibrate faster.
What happens to a colour of a solute molecules when the solvent evaporates or boils?
The color of an anhydrous compound is sometimes different from the hydrated compound.
What happens to the atom or molecules of a substance if it melts?
Nothing. Melting is a physical change and does not alter the chemical composition of a substance.
