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Question
On diluting an acid, it is advised to add acid to water and not water to acid. Explain why it is so advised?
On diluting an acid, it is advised to add acid to water and not water to acid. Explain why it is so advised?
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Solution
Exothermic reaction: It is a reaction in which energy is emitted in the form of light or heat. Energy is released to the environment as the reaction proceeds.
The reaction of acid and water is an exothermic reaction since a lot of heat is liberated during the reaction. This heat changes some water to steam explosively which can splash the acid on our face or clothes and cause acid burns. Therefore,
- While diluting an acid, it is preferred that the acid is added to water rather than the water being added to the acid.
- Adding water to a concentrated acid releases a large amount of heat, which can cause an explosion and acid burns on the skin, clothing, and other body parts.
Hence, adding acid to water is safe, but adding water to acid is not.
Exothermic reaction: It is a reaction in which energy is emitted in the form of light or heat. Energy is released to the environment as the reaction proceeds.
The reaction of acid and water is an exothermic reaction since a lot of heat is liberated during the reaction. This heat changes some water to steam explosively which can splash the acid on our face or clothes and cause acid burns. Therefore,
- While diluting an acid, it is preferred that the acid is added to water rather than the water being added to the acid.
- Adding water to a concentrated acid releases a large amount of heat, which can cause an explosion and acid burns on the skin, clothing, and other body parts.
Hence, adding acid to water is safe, but adding water to acid is not.
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