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State one way that the melting point of an impure organic substance differs from the melting point of a pure sample of the same substance. - Leaving Cert Chemistry - Question i - 2014
Question i
State one way that the melting point of an impure organic substance differs from the melting point of a pure sample of the same substance.
Worked Solution & Example Answer:State one way that the melting point of an impure organic substance differs from the melting point of a pure sample of the same substance. - Leaving Cert Chemistry - Question i - 2014
Step 1
State one way that the melting point of an impure organic substance differs from the melting point of a pure sample of the same substance.
Answer
The melting point of an impure organic substance is typically lower than that of a pure sample and exhibits a wider range of values. This occurs because impurities disrupt the orderly arrangement of molecules in the solid state, requiring a lower temperature to transition to the liquid state.