Question

A student adds water to a substance X taken in beaker. He feels the beaker turning hot and a

hissing sound is produced.Why does this happen? Write a chemical equation for the reaction.

State the type of this reaction.​

Answer 1

Answer:

X is a mixture of solid base and solid acid. As they react with the water and slowly dissolve in it for neutralisation, hydrogen gas is produced, which results in bubbles, which in turn make sound.

Explanation:

The process is an exo-thermal displacement reaction because heat is produced.

Due to an exothermic reaction between the water and substance X, when a student adds water to it, the substance X in the beaker produces heat and makes a heating sound.

Exothermic reactions are those that generate heat; they are identified by the heat flow q being negative when heat escapes the system and moves outside.

The burning of coal in oxygen and the production of carbon dioxide are a few instances of exothermic processes.

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