Question

give reason why sepration of gases is a physical change ​

Answer 1

Answer:

Because in separation of gases there is no change in its composition.

Explanation:

The separation of gases is a physical change because in separating a gas from another we use the method of increasing or decreasing pressure or increasing or decreasing temperature which is the physical property of a substance.And it doesn't cause any effect in to the composition of gases.

hence, the separation of gases is a physical change.

Answer 2

sepration of gases is a physical change because there is no change in its composition