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Question
Why do some solids have a high melting point while some melt at a low temperature?
Why do some solids have a high melting point while some melt at a low temperature?
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Solution
- Nonpolar molecules that are symmetrical and small (H2, N2, O2, F2 ) have weak intermolecular forces and form molecular solids with quite low melting points (below −200 °C).
- Substances that are larger, nonpolar molecules have stronger intermolecular forces and melt at higher temperatures so their high melting point.
- Nonpolar molecules that are symmetrical and small (H2, N2, O2, F2 ) have weak intermolecular forces and form molecular solids with quite low melting points (below −200 °C).
- Substances that are larger, nonpolar molecules have stronger intermolecular forces and melt at higher temperatures so their high melting point.
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