Examine the following phase diagram and identify the feature represented by point A. Pressure 760 torr melting point Ocritical point Otriple point sublimation point Oboiling point A Temperature В.

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Chapter1: Chemical Foundations
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**Phase Diagram Analysis**

Examine the following phase diagram and identify the feature represented by point A.

*(Diagram Description)*

This phase diagram plots Pressure (on the y-axis, measured in torr) versus Temperature (on the x-axis). There are several notable features and points indicated in the diagram:

1. **Data Point A**: This point is located on the diagram where three lines meet, suggesting a unique significance in phase diagrams.
2. **Data Point B**: This point is situated on a curve that shows a rapid increase in pressure with a slight rise in temperature above 760 torr.
3. **The Line at 760 torr**: A horizontal dashed line at 760 torr indicates standard atmospheric pressure.

The primary axes are:
- **Y-axis**: Pressure (torr)
- **X-axis**: Temperature 

Using this diagram, we need to determine the feature that point A represents. Below are the possible options:

- Melting point
- Critical point
- Triple point
- Sublimation point
- Boiling point

In examining phase diagrams, it's important to understand various terminologies:
- **Melting Point**: The temperature at which a solid turns into a liquid.
- **Critical Point**: The highest temperature and pressure at which a liquid and its vapor can coexist.
- **Triple Point**: The unique set of conditions under which three phases (solid, liquid, gas) coexist in equilibrium.
- **Sublimation Point**: The temperature and pressure at which a solid turns directly into a gas.
- **Boiling Point**: The temperature at which a liquid's vapor pressure equals the external pressure surrounding the liquid.

Given that point A is located at the intersection where three lines representing different phases meet, it corresponds to conditions where three phases coexist. This condition is typically referred to as the **Triple Point**. 

**Conclusion**:
- Point A represents the **Triple Point** in this phase diagram.
Transcribed Image Text:**Phase Diagram Analysis** Examine the following phase diagram and identify the feature represented by point A. *(Diagram Description)* This phase diagram plots Pressure (on the y-axis, measured in torr) versus Temperature (on the x-axis). There are several notable features and points indicated in the diagram: 1. **Data Point A**: This point is located on the diagram where three lines meet, suggesting a unique significance in phase diagrams. 2. **Data Point B**: This point is situated on a curve that shows a rapid increase in pressure with a slight rise in temperature above 760 torr. 3. **The Line at 760 torr**: A horizontal dashed line at 760 torr indicates standard atmospheric pressure. The primary axes are: - **Y-axis**: Pressure (torr) - **X-axis**: Temperature Using this diagram, we need to determine the feature that point A represents. Below are the possible options: - Melting point - Critical point - Triple point - Sublimation point - Boiling point In examining phase diagrams, it's important to understand various terminologies: - **Melting Point**: The temperature at which a solid turns into a liquid. - **Critical Point**: The highest temperature and pressure at which a liquid and its vapor can coexist. - **Triple Point**: The unique set of conditions under which three phases (solid, liquid, gas) coexist in equilibrium. - **Sublimation Point**: The temperature and pressure at which a solid turns directly into a gas. - **Boiling Point**: The temperature at which a liquid's vapor pressure equals the external pressure surrounding the liquid. Given that point A is located at the intersection where three lines representing different phases meet, it corresponds to conditions where three phases coexist. This condition is typically referred to as the **Triple Point**. **Conclusion**: - Point A represents the **Triple Point** in this phase diagram.
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