CBSE Class 6 Answered
what is exothermic change and endothermic change with one example of both
Asked by anupamasharma54883 | 13 Jan, 2020, 08:13: PM
Expert Answer
Exothermic reactions
A chemical change in which heat is given out is called an exothermic change. It causes a rise in temperature.
Examples:
Respiration, rusting, burning of coal, petrol and kerosene are some common examples of exothermic reactions.
Burning of a fire cracker is an example of an exothermic change.
A lot of heat is produced when carbon burns in oxygen to form carbon dioxide.
Endothermic reactions
A chemical change in which heat is absorbed is called an endothermic change.
It causes a fall in temperature.
Examples:
When nitrogen and oxygen are heated to a temperature of about 3000°C, nitric oxide gas is formed. This is an endothermic reaction.
Answered by Varsha | 14 Jan, 2020, 10:17: AM
Concept Videos
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Changes around Us - 1
This video explains different kinds of changes.
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