Question

What are slow and fast changes? Give examples.

Answer 1

Hint:The changes are defined as the variation occurring in the physical and chemical characteristic of the compound. The change which is dependent on the time is classified into slow change and fast change. By the name itself we can get to know the definition of the slow change and fast change.

Complete step by step answer:
The change observed in any substance is described as any difference in the size or the shape, color, texture of the object.
On the basis of time, the change is classified as slow change and fast change.
Slow change: Slow change is defined as the change which takes place in a long interval of time. It can take hours, months or years to complete the reaction.
The example of slow change is shown below.
(1) Rusting of iron
(2) Ripening of fruits
(3) Fermentation of sugar
(4) Formation of day and night
(5) Growing of trees
Fast change: Fast change is defined as the change which does not require a long interval of time. It takes place in a small duration of time. It can be done in seconds, in minutes.
The example of fast change is shown below.
(1) Neutralization reaction between acid and base
(2) Bursting of crackers
(3) Burning paper
(4) Blowing of balloon
(5) Stretching of rubber band

Note:
Do not get confused in the examples of slow and fast change, write only the correct example for the given change. The change can also be classified as chemical change, physical change, reversible change, irreversible change.