Answer:

Introduction:
Diluting a concentrated acid can generate a significant amount of heat, which can be hazardous if not handled properly. Therefore, it is crucial to follow the correct procedure to protect oneself from the heat generated during this process.

Explanation:
To protect oneself from the heat generated while diluting a concentrated acid, the correct procedure is to add acid to water with constant stirring. This method is known as "acid to water" dilution and is considered safer than adding water to acid.

Reasoning:
The reason for adding acid to water is to control and minimize the heat generated during the dilution process. When water is added to acid, the reaction can be highly exothermic, resulting in a rapid release of heat. This can cause the mixture to splash or boil, leading to potential hazards such as acid splattering or the container breaking.

Explanation of the Acid to Water Dilution Process:
1. Start with a container that is suitable for holding the acid solution. It is recommended to use a container made of glass or a chemically resistant material.
2. Begin by measuring the desired amount of water needed for dilution. It is important to use a sufficient amount of water to ensure proper dilution.
3. With constant stirring, slowly pour the concentrated acid into the container containing the water. The stirring helps to distribute the heat and prevent localized hotspots.
4. Continue stirring until the acid is completely mixed with the water. This will ensure a homogeneous solution.
5. Allow the solution to cool before transferring it to the desired container or using it for any further applications.
6. Be cautious and follow appropriate safety measures, such as wearing protective gloves, goggles, and a lab coat, while handling concentrated acids.

Safety Precautions:
1. Always wear appropriate personal protective equipment (PPE) when working with concentrated acids, including gloves, goggles, and a lab coat.
2. Work in a well-ventilated area to prevent the accumulation of acid fumes.
3. Handle acids with care, ensuring that containers are properly sealed and stored in a designated area when not in use.
4. In case of accidental spills or splashes, immediately rinse the affected area with copious amounts of water and seek medical attention if necessary.

Conclusion:
In summary, to protect oneself from the heat generated while diluting a concentrated acid, it is important to follow the correct procedure of adding acid to water with constant stirring. This method minimizes the risk of heat-related hazards and ensures a safer dilution process.