EVERYDAY SCIENCE

SCIENCE

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When a physical change in a sample occurs, which of the following does not change?
A
composition
B
shape
C
temperature
D
volume
Explanation: 

Detailed explanation-1: -Physical change is a change in which the appearance, shape, size, colour and state of the substance changes but the chemical composition remains the same.

Detailed explanation-2: -During a physical change, only a change in shape, size, arrangement can take place but no new molecule gets formed.

Detailed explanation-3: -Physical changes occur when objects or substances undergo a change that does not change their chemical composition. This contrasts with the concept of chemical change in which the composition of a substance changes or one or more substances combine or break up to form new substances.

Detailed explanation-4: -The decay of matter is not a physical change.

Detailed explanation-5: -The changes are of two types: Physical and chemical change. A physical change is a change that involves only a change in the physical state of matter. Its chemical properties remain the same.

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