Question

give example to show difference between @/n/ and /3:/

Answer 1

Answer:

The changes which can be reversed are called reversible changes.

The changes which cannot be reversed are called irreversible changes.

Examples of reversible and irreversible changes.

Glowing of an electric bulb. (It glows when switched on and becomes dark when switched off.)

1. Burning of paper or wood. (It gives smoke and ash, which cannot form paper or wood again.)

2. Distillation of liquid.

Liquidcondensation⇌evaporationVapour

2. Rusting of iron. (Rust cannot be changed into iron again.)

3. Sublimation

solidcool⇌heatvapor

3. Making of curd from milk.

4. Collapsing of mimosa (touch me not) leaves on touching and opening up on removing the finger.

4. Growth of plants and animals.