14 Use the data in the table to work out the state of each substance at 25 °C. *
(3 Points)
Substance
Melting point (°C)
Boiling point (°C)
State at 25 °C
methane
-182
-164
dodecane
-10
216
phenol
43
182
(3 marks)
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16

Explanation:

The melting point of a substance is the temperature at which its melt. The state of a substance is dependent on it's melting temperature. Generally, melting point above 25 °C is a solid.

This means phenol is a solid

Duodecane has melting point below 25 °C hence it is either a liquid or gas. However its boiling point of 216 °C means it would require higher temperature to boil it. Since 25 °C is less than 216 °C it means that it would remain in the liquid state.

Methane has melting point below 25 °C hence it is either a liquid or gas. However its boiling point of -164 °C means it boils easily even at very low temperatures. Since 25 °C is greater than -164 °C it means that it would exist in the gaseous state

idk i'm not smart

explanation:

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