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熔點是指晶體晶格被破壞時的溫度.在升溫過程中,由於分子吸熱引起動能增大,能大到一定程度時就不再受晶格的束縛,掙脫晶格.這時晶格被破壞.而晶格破壞的過程是一個强吸熱的過程,熔化時,分子的吸收的熱能大部分用於晶格…
不是晶體結構就沒有固定的反映式,所以沒有固定熔點
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