Why crystalline solid have definite heat …
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Yogita Ingle 7 years, 2 months ago
Crystalline solids have same properties in all direction of the crystal, they have a regular and repetitive arrangement of constituent particles, and thus a sharp melting point. They do not flow before melting. Hence, they have definite heat of fusion.
Whereas, amorphous solids do not have a regular pattern of constituent particles and thus do not have a sharp melting point. They melt over a range of temperature and start to flow without completely changing into liquid. Hence, they do not have definite heat of fusion.
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