Physical state of matter can be changed by changing the temperature only. True or False?
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Answers
Physical conditions like temperature and pressure affect state of matter. ... When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation).
Answer: False
Explanation:
When heat energy is applied to a substance while the temperature remains constant, the substance's state of matter changes from solid to liquid or from liquid to gas.
(a) Melting/fusion is the transformation of a substance from its solid state into its liquid state upon absorption of heat at a specific temperature. The temperature at which this transformation takes place is referred to as the melting point.
(b) Boiling is the process of a substance changing from a liquid state to its gaseous state at a specific temperature; the temperature at which this occurs is known as the boiling point.
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