Chemistry, asked by swapnadip33, 10 months ago

explain the change of heat energy in a physical change​

Answers

Answered by Shayna008
20

Explanation:

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A chemical reaction or physical change is exothermic if heat is released by the system into the surroundings. Because the surroundings is gaining heat from the system, the temperature of the surroundings increases. ... For example, when solid dry ice vaporizes (physical change), carbon dioxide molecules absorb energy.

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Answered by OlaMacgregor
6

Explanation:

A physical change is defined as the change which does not cause any change in the chemical composition of a substance.

For example, heat energy absorbed by an ice will causes water to change its physical state to change from solid to gas.

On the other hand, a change in chemical composition of a substance will leads to change in chemical nature of the substance. This change is known as chemical change.

For example, AgNO_{3} + HCl \rightarrow AgCl + HNO_{3}

Learn more about physical change:

https://brainly.in/question/5600425

https://brainly.in/question/9169393

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