Question

Is converting wood to sawdust a reversible change? give reason for your answer

Answer 1

No, the conversation of wood into sawdust is a Irreversible change as if never be turn the saw dust into wood again.

Answer 2

Answer:

No, conversion of wood to sawdust is an irreversible change.

Explanation:

• A physical change occurs in a substance when it changes to a different form of matter without changing its composition; like ice melting into water, wood changing to sawdust, dissolving sugar in water etc.
• Physical changes can be reversible and irreversible.
• When the state of matter cannot be reversed to the original form, then it is said to be an irreversible physical change, like a block of wood after grounding into sawdust cannot be changed into the same block of wood.
• A cube of ice upon melting to water can be frozen back to the ice cube form, making it a reversible change.