Question

Answer the following questions in not less than one pag
a) Define the terms reversible change and irreversible change. Give
example for each type of change.
b) Some changes are listed below. Identify whether it is reversible or
irreversible change.
i. Rusting of iron.
ii. Burning of candle.
iii. Dissolving sugar in water.
iv. souring of milk.

Answer 1

Answer:

Reversible change = Change which can be reversed is called reversible change. Ex. melting of ice.

Irreversible change = Change which cannot be reversed is known as irreversible change. Ex. cooking of food.

b) i= Irreversible change.

ii = reversible change.

iii = irreversible change.

iv = irreversible change

Answer 2

Kinematics is the branch of classical mechanics that describes the motion of points, objects and systems of groups of objects, without reference to the causes of motion (i.e., forces ). The study of kinematics is often referred to as the “geometry of motion.”