A liquid is in equilibrium with its vapour at its boiling point. On average, the molecules in the two phases have equal

Options

A. Intermolecular forces
B. Potential energy
C. Kinetic energy
D. Total energy

Explanation

To solve the question, we need to analyze the relationship between the molecules in a liquid and its vapor at the boiling point. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Concept of Equilibrium
At the boiling point, a liquid is in equilibrium with its vapor. This means that the rate of evaporation of the liquid equals the rate of condensation of the vapor back into the liquid.

**Hint:** Consider what happens at the molecular level when a liquid boils.

### Step 2: Identify the Phases
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