Question

In a candle, the process of burning continues because:

• A. The wick keeps delivering molten wax to the flame.
• B. The wick keeps burning.
• C. Solid wax keeps burning.
• D. Sufficient heat energy is available.

Answer 1

The correct option is A

The wick keeps delivering molten wax to the flame.

When a candle is lighted, the heat of the flame melts the wax near the wick. This liquid wax is then drawn up the wick. The heat of the flame vaporizes the liquid wax and turns it into a hot gas. These vaporized molecules are drawn up into the flame, where they react with oxygen from the air to create heat, light, water vapor $\left(H_{2}O\right)$ and carbon dioxide $\left(C{O}_2\right)$.