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Which term is used to define the temperature at which a substance changes its status from solid to liquid?

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+1 vote
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in Engineering Material & Metallurgy by (773k points)
Which term is used to define the temperature at which a substance changes its status from solid to liquid?

(a) Boiling point

(b) Melting point

(c) Condensation point

(d) Freezing point

I had been asked this question during a job interview.

Enquiry is from Thermal Properties in division Properties of Engineering Materials of Engineering Material & Metallurgy

1 Answer

+1 vote
by (1.3m points)
Correct answer is (b) Melting point

The best I can explain: The temperature at which a substance changes from solid state to liquid is known as the melting point; here the temperatures of solid and liquid are in equilibrium. The shift of liquid state to solid is known as the freezing point. The transition from gaseous state to liquid is known as condensation, while that of liquid to gaseous is known as the boiling point.

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