Chemistry

Question

Rank the following molecules (1st, 2nd, 3rd, 4th) in the order that they melt.



Sucrose

Iodine

Sodium

Paraffin


There is a picture attached
Rank the following molecules (1st, 2nd, 3rd, 4th) in the order that they melt. Sucrose Iodine Sodium Paraffin There is a picture attached

1 Answer

  • Sodium chloride has the highest melting point while iodine has the least melting point.

    The melting points of solid substances depends on the nature of intermolecular forces that exists in the substance. The stronger the magnitude of intermolecular forces in a substance, the higher its melting point.

    The order of melting points of the solids shown in question is as follows;

    • 1st - Sodium chloride
    • 2nd - sucrose
    • 3rd - paraffin
    • 4th - Iodine

    Sodium chloride has the highest melting points because it is an ionic substance. Among the molecular sucrose and paraffin, sucrose has a higher melting point than sucrose because it has a greater molar mass. Iodine, a molecular substance has the least molar mass and the least melting point in the list.

    Learn more: https://brainly.com/question/25777663

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