In a solid `hArr` liquid equilibrium , temperature remains constant.

Answer

**Solution:**

To determine whether the statement "In a solid-liquid equilibrium, temperature remains constant" is true or false, we can analyze the concept of solid-liquid equilibrium and the phase changes involved.

1. **Understanding Solid-Liquid Equilibrium**:
- Solid-liquid equilibrium refers to the state where a solid and its corresponding liquid are present together at a certain temperature and pressure. At this point, the rate of melting of the solid equals the rate of freezing of the liquid.

2. **Phase Change**:
- When a solid changes to a liquid (melting), it undergoes a phase change. During this process, the substance absorbs heat.

3. **Temperature During Phase Change**:
- It is important to note that during a phase change (like melting), the temperature of the substance remains constant. This is because the heat energy supplied to the substance is used to overcome the intermolecular forces holding the solid together, rather than increasing the kinetic energy of the molecules, which would raise the temperature.

4. **Latent Heat**:
- The heat absorbed or released during a phase change at constant temperature is known as latent heat. In the case of melting, the latent heat is the heat required to convert a solid into a liquid without changing its temperature.

5. **Conclusion**:
- Since the temperature does not change during the phase transition from solid to liquid (or vice versa), we can conclude that the statement is true.

Thus, the statement "In a solid-liquid equilibrium, temperature remains constant" is **True**.

---