The melting point of a 10-gram sample of the wax is 50 °C
The melting point of a substance is the temperature at which the substance changes state from solid to liquid.
Substances always have a particular melting point.
For example
Melting point of iron is 1538 °C
Melting point of copper is 1085 °C
Melting point of silver is 961.8 °C
The melting of a substance does not depend on the quantity of the substance.
∴ The melting point of a 10-gram sample of wax will have the same value as the melting point of a 5-gram sample of wax.
Hence, the melting point of a 10-gram sample of the wax is 50 °C
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