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True or False- The freezing point of a substance is equal to the melting point of a substance?
True. The freezing point of a substance is the temperature at which it changes from a liquid phase to a solid phase, while the melting point is the temperature at which it changes from a solid phase to a liquid phase. In equilibrium, the freezing point and melting point of a substance are the same.
When a substance change from one physical form to another you say the substance has had an?
When a substance changes from one physical form to another, it has undergone a phase change. This can include processes like melting, freezing, vaporization, condensation, and sublimation.
When are the terms melting point and freezing point used?
The term "melting point" is used to describe the temperature at which a substance changes from a solid to a liquid. The term "freezing point" is used to describe the temperature at which a substance changes from a liquid to a solid.
Does melting occur when a substance changes from a liquid to a solid?
This change in the state of matter (liquid to solid) is called freezing, not melting; it is a physical change, the chemical nature of the molecules is not changed.
What are the four main phase changes and how does heat affect their change?
The four main phase changes are... • Melting from solid to liquid • Evaporating from liquid to gas • freezing liquid to solid • condensation gas to liquid The first three obviously need heat! Not condensation though c:
What are the phase changes?
Melting, Freezing, Condensation, Evaporation, and Sublimation.
What are the 5 changes of state?
sublimation melting freezing condensation vaporation
What is a list of the 5 changes of state?
boiling sublimation freezing melting condensation
What are the six different phase changes?
The six different phase changes are: Melting (solid to liquid) Freezing (liquid to solid) Vaporization (liquid to gas) Condensation (gas to liquid) Sublimation (solid to gas) Deposition (gas to solid)
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.
Is a condensation point the same as a melting point?
No, Gas--->liquid (condensation). Solid---->liquid (melting)
True or False- The freezing point of a substance is equal to the melting point of a substance?
True. The freezing point of a substance is the temperature at which it changes from a liquid phase to a solid phase, while the melting point is the temperature at which it changes from a solid phase to a liquid phase. In equilibrium, the freezing point and melting point of a substance are the same.
Which state changes are exothermic and endothermic?
freezing is exothermic, melting is endothermic, evaporation is endothermic, condensation is exothermic.
Which of the following is a change of state of a substance?
solid to gas,solid to liquid,liquid to gasare endothermicthe reverse are exothermicSource: http://answers.yahoo.com/question/index?qid=20081022202228AAFplBc
Melting freezing and boiling are what kind of change?
Melting, freezing, and boiling are physical changes, as they do not involve a change in the chemical composition of the substance.
Are freezing and melting points characteristic properties?
Yes, freezing and melting points are characteristic properties of a substance. They are specific temperatures at which a substance changes its state from solid to liquid (melting) or from liquid to solid (freezing) under normal atmospheric pressure.
The melting point of a substance is its freezing point.?
No, the melting point of a substance is the temperature at which it changes from a solid to a liquid, whereas the freezing point is the temperature at which it changes from a liquid to a solid. These points are usually the same for a pure substance under normal atmospheric pressure.
