Why do crystalline solids have a definite and characteristic enthalpy of fusion
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Crystalline solid have same property in all direction of crystals . They have regular & repetitive arrangement of particles . Have Sharp melting point . & they are made up of one type of unit cells , which have fix value of length , breath & height , & have a fix angle . They have same physical property in all direction , & bind by strong intermolecular forces . That's why they have definite & characteristics enthalpy of fusion .
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