Reversible and Irreversible Change
Reversible and Irreversible Change
Reversible Change:
When a change can be reversed easily, it is called reversible change. Examples: Melting of ice, folding of paper, water turning into vapour, inflation of balloon, etc. The three physical states of water i.e. solid (ice), liquid(water) and gas (water vapour) are reversible and can be changed from one state to another by heating or cooling.
Irreversible Change:
When a change cannot be reversed, it is called irreversible change. Examples: Cooking of food, growth in a living being, burning of paper, etc.
Which of the following are correct ? (a) When a change can be reversed easily, it is called reversible change. (b) The example of reversible change are melting of ice, folding of paper, water turning into vapour, inflation of balloon, etc. (c)The three physical states of water i.e. solid (ice), liquid(water) and gas (water vapour) are reversible. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct ? (a) Milk gets spoiled when not refrigerated, particularly in summers is an irreversible change. (b) Cooking of food is an irreversible change because we cannot get back the ingredients in their original form. | |||
| Right Option : B | |||
| View Explanation | |||
The three physical states of water i.e. solid (ice), liquid(water) and gas (water vapour) are _______________ change. | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [10]
It has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
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Ayan Ghosh
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Shreya Shrivastava
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Yatharthi Sharma
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Archit Segal
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Om Umang
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Hiya Gupta
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
