Are all changes caused by heat reversible? Why?
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14
Answer:
All chemical changes are irreversible changes. Once the chemical properties of a substance are changed, it becomes another substance. Thus, it cannot return to its original state.
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0
Answer:
No, all changes caused by heat are not reversible.
Explanation:
- Heat is frequently utilized to modify materials. Cooling can undo some of these alterations, but not all of them can be. The characteristics of the material that is being heated and cooled will determine this.
- Water undergoes a number of reversible changes when it is heated and cooled. Ice is water that has frozen into a solid state. Ice melts and turns into liquid water when it is heated. As the liquid is heated further, water vapor forms as a gas. Cooling causes water vapor to return to its liquid state. The liquid water will turn into ice as it continues to cool.
- When food is cooked it usually undergoes an irreversible change. When an egg is fried it is still an egg, but its texture, shape, smell, and appearance are altered. The heat has brought about an irreversible change.
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