Why is it considered safer to add acid slowly to water during dilution?
Answer and explanation
Correct answer: Because heat is released and splashing is reduced
Dilution of a concentrated acid is highly exothermic: heat is released when acid particles become solvated by water. Adding acid slowly to a larger quantity of water allows the released heat to disperse through the water and permits controlled stirring, reducing the chance of sudden boiling and splashing. Adding a small amount of water to concentrated acid can create intense local heating and dangerous splashes. The acid does not freeze or become a base, so option A is correct.
Frequently asked questions
What is the correct answer to this question?
Because heat is released and splashing is reduced
Why is this the correct answer?
Dilution of a concentrated acid is highly exothermic: heat is released when acid particles become solvated by water. Adding acid slowly to a larger quantity of water allows the released heat to disperse through the water and permits controlled stirring, reducing the chance of sudden boiling and splashing. Adding a small amount of water to concentrated acid can create intense local heating and dangerous splashes. The acid does not freeze or become a base, so option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
