Chemistry
State what is meant by the term - interconversion of matter. Is interconversion of matter a physical change or a chemical change?
Answer
Interconversion of matter involves matter changing from one state to another and back to its original state, by change in temperature or pressure.
Interconversion of matter is a physical change because:
- it is a reversible change,
- no new products are formed,
- properties of the original substance are not altered.
Related Questions
State the observations seen, when milk in a dish is kept aside for a few hours or more. Is the change which occurs - a physical change or a chemical change. Give reasons.
Ice kept in a beaker slowly melts and turns into water. The water in the beaker on solidification i.e., freezing turns back to ice. Give four reasons why the change from ice to water and water back to ice is considered a physical change.
Explain the term- 'sublimation'. Is sublimation of naphthalene - a physical or a chemical change? Give reasons.
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.