What happens when a liquid a heated to the critical temperature of its vapour?

Explanation

When a liquid is heated to its critical temperature, several significant changes occur. Here’s a step-by-step explanation of what happens:

### Step-by-Step Solution:

1. **Understanding Critical Temperature**:
- The critical temperature (Tc) of a substance is the temperature above which it cannot exist as a liquid, regardless of the pressure applied. At this temperature, the properties of the liquid and its vapor start to converge.

2. **Heating the Liquid**:
...