Question

In the given triple point curve as shown in fig, the curves AO, BO, CO represents

• A. AO = Sublimation curve, BO = fusion curve, CO = Vaporization curve
• B. AO = Fusion curve, BO = Sublimation curve, CO = Vaporization curve
• C. AO = Fusion curve, BO = Vaporization curve, CO = Sublimation curve
• D. AO = Vaporization curve, BO = fusion curve, CO = Sublimation curve

Hint:

In a phase diagram, the curves originating from the triple point indicate the equilibrium between two phases. Remember that the curve between solid and liquid is the fusion curve, the curve between solid and vapor is the sublimation curve, and the curve between liquid and vapor is the vaporization curve.

Answer 1

The Correct Option is B

The provided image shows a typical phase diagram with pressure on the y-axis and temperature on the x-axis.
The triple point is the point where all three phases (solid, liquid, vapor) coexist in equilibrium.
In the given diagram, the triple point is labeled 'O'.
The curves emanating from the triple point represent the conditions under which two phases are in equilibrium: - **Curve AO:** This curve separates the solid phase from the liquid phase.
Along this curve, the solid and liquid phases coexist in equilibrium.
This curve represents the **fusion curve** (melting or freezing).
- **Curve BO:** This curve separates the solid phase from the vapor phase.
Along this curve, the solid and vapor phases coexist in equilibrium.
This curve represents the **sublimation curve** (sublimation or deposition).
- **Curve CO:** This curve separates the liquid phase from the vapor phase.
Along this curve, the liquid and vapor phases coexist in equilibrium.
This curve represents the **vaporization curve** (boiling or condensation).
Therefore, based on the standard interpretation of a phase diagram, the curves AO, BO, and CO represent the fusion curve, sublimation curve, and vaporization curve, respectively.