Question

The boiling point of cyclohexane is 80.7°C. What is the physical state of this chemical species at 20°C? b) Mercury melts at -39°C and boils at 356.9°C. What is its state at -20°C?Explain

Answer 1

Answer for cyclohexane:

At 20°C the physical state of cyclohexane will be liquid.

Explanation for cyclohexane:

The boiling point of a substance is the temperature at which it changes from a liquid state to a gaseous atate.

If 80.7°C is the boiling point of cyclohexane, it means that at that temperature it changes state from liquid to gaseous.

If the temperature is lower than 80.7°C the cyclohexane will remain at liquid state, and if the temperature is greater than 80.7°C its state will be gaseous.

So, at 20°C the physical state of cyclohexane will be liquid.