During fractional distillation of petroleum, different components condense at different heights in the fractionating tower. Explain why?

Explanation

### Step-by-Step Solution:

1. **Understanding Fractional Distillation**: Fractional distillation is a process used to separate a mixture into its individual components based on their boiling points. In the case of petroleum, which is a complex mixture of hydrocarbons, this method is particularly effective.

2. **Structure of the Fractionating Tower**: The fractionating tower is designed with multiple outlets at different heights. This allows for the collection of various components as they condense at different levels.

3. **Boiling Points of Components**: Each component of petroleum has a specific boiling point. When the crude oil is heated, it vaporizes, and as the vapor rises through the tower, it cools down.

...