0
When a substance freezes what causes the liquid phase to change into the solid phase?
Wiki User
∙ 15y ago
When a liquid is cooled, the average energy of the molecules decreases. At some point, the amount of heat removed is great enough that the attractive forces between molecules draw the molecules close together, and the liquid freezes to a solid. Microscopic view of a liquid. Microscopic view of a solid. The temperature of a freezing liquid remains constant, even when more heat is removed. The freezing point of a liquid or the melting point of a solid is the temperature at which the solid and liquid phases are in equilibrium. The rate of freezing of the liquid is equal to the rate of melting of the solid and the quantities of solid and liquid remain constant.
Wiki User
∙ 15y ago
When a substance freezes, the molecules slow down and come together, forming a regular pattern that locks them into a solid structure. This process releases energy in the form of heat, causing the temperature to decrease.
Wiki User
∙ 14y agoWhen a substance freezes it enlarges.
Add your answer:
Earn +20 pts
How does the motion and arrangement of particles is a substance change as the substance freezes?
As a substance freezes, the particles slow down and move closer together, forming a more ordered arrangement. This results in a decrease in the substance's volume and a transition from a liquid to a solid state.
Does a substance gain energy when it freezes?
When a substance freezes, it releases energy as it changes from a higher-energy state (liquid) to a lower-energy state (solid). The energy is released as heat into the surroundings.
How do you use the word physical properties in a sentence?
The physical properties of the substance include its color, density, and texture.
When a substance freezes does its thermal energy decrease?
Yes, when a substance freezes, its thermal energy decreases since the molecules lose kinetic energy and slow down as they transition from a liquid to a solid state.
What happens to the particles of a liquid as the liquid freezes?
As a liquid freezes, its particles slow down and move closer together, forming a solid crystal lattice structure. This results in a decrease in the random motion of the particles and a decrease in the volume of the substance as it transitions from a liquid to a solid state.
How does the motion and arrangement of particles is a substance change as the substance freezes?
As a substance freezes, the particles slow down and move closer together, forming a more ordered arrangement. This results in a decrease in the substance's volume and a transition from a liquid to a solid state.
Which process causes a substance in the liquid state to change to a gas?
evaporation
The temperature at which a substance freezes is also its what?
The answer is that the temperature a substance freezes is also its melting point. Water freezes at 0 degrees Celsius into ice and if you heat ice up to 0 degrees Celsius it MELTS to give you water. Evaporation is the change from liquid to gas and condensation is the change from gas to liquid (for water this happens at 100 degrees Celsius).
Is freezing point physical property a physical change a chemical property or a chemical change?
The freezing point is a physical property because it describes a characteristic of a substance (temperature at which it freezes) without changing the chemical composition of the substance. When a substance freezes, it undergoes a physical change from a liquid to a solid, not a chemical change.
What state at degrees Celsius does a liquid change into a solid?
it depends on the substance. water freezes at zero degrees Celsius, 32 degrees Fahrenheit.
What causes a substance to change to gas?
The addition of heat or reduction in pressure can cause a substance to change from either a solid (sublimation) or liquid (evaporation) into a gas.
Why is freezing a physical change?
Freezing is a physical change because although change obviously takes place, what something is made of does not change when it freezes. Liquid water and ice are the same substance for example.
Does ice undergo a chemical change when it freezes?
No, ice does not undergo a chemical change when it freezes. Freezing is a physical change that causes water molecules to slow down and come closer together, forming a solid structure with the same chemical composition as liquid water.
When does A liquid changes to a solid state at its?
A liquid will change to a solid when it freezes.
What causes a change in state?
A change in state can be caused by either adding or removing energy from a substance. For example, adding heat can cause a solid to melt into a liquid, and removing heat can cause a liquid to freeze into a solid. Pressure changes can also cause a substance to change state, such as turning a gas into a liquid by increasing pressure.
Are the melting and freezing of a substance the same?
Yes. A substance melts and freezes at the same temperature. Melting is as it changes from solid to liquid, freezing is from liquid to solid.
How is the H fusion used to calculate the energy released when a mass of liquid freezes?
The heat of fusion is the amount of energy needed to change a substance from a liquid to a solid. To calculate the energy released when a mass of liquid freezes, you would use the equation Q = m * Hf, where Q is the energy released, m is the mass of the substance, and Hf is the heat of fusion.
