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Why does a substance change from one state of matter to another?
- a)The substance’s size changes.
- b)The substance’s temperature changes.
- c)The substance turns into a different kind of matter.
- d)None
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Why does a substance change from one state of matter to another?a)The ...
Matter can change from one state to another when thermal energy is absorbed or released i.e. when temperature changes.
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Why does a substance change from one state of matter to another?a)The ...
Understanding State Changes in Matter
Substances can exist in different states of matter: solid, liquid, and gas. The transition between these states is primarily influenced by changes in temperature.
Why Temperature Matters
- Energy Changes: Temperature is a measure of the energy of the particles in a substance. When temperature changes, the energy of the particles changes as well.
- Heating Up:
- When a substance is heated, its particles gain energy and move faster.
- This increased movement can cause solids to melt into liquids (e.g., ice turning into water) or liquids to evaporate into gases (e.g., water turning into steam).
- Cooling Down:
- Conversely, when a substance is cooled, its particles lose energy and move slower.
- This can lead to gases condensing into liquids (e.g., steam becoming water) or liquids freezing into solids (e.g., water turning into ice).
Why Other Options Are Incorrect
- Option A (Size Changes): The size of a substance doesn’t directly cause a change in state; it’s the energy and movement of particles that matter.
- Option C (Different Matter): Changing states doesn’t mean the substance turns into something else. The chemical composition remains the same (e.g., water remains H2O in all states).
- Option D (None): This option is incorrect because temperature indeed plays a crucial role in changing states.
Conclusion
In summary, the change of a substance from one state of matter to another is primarily due to temperature changes, affecting the energy and movement of its particles. Understanding this concept helps us grasp the behavior of materials in our everyday lives.
Substances can exist in different states of matter: solid, liquid, and gas. The transition between these states is primarily influenced by changes in temperature.
Why Temperature Matters
- Energy Changes: Temperature is a measure of the energy of the particles in a substance. When temperature changes, the energy of the particles changes as well.
- Heating Up:
- When a substance is heated, its particles gain energy and move faster.
- This increased movement can cause solids to melt into liquids (e.g., ice turning into water) or liquids to evaporate into gases (e.g., water turning into steam).
- Cooling Down:
- Conversely, when a substance is cooled, its particles lose energy and move slower.
- This can lead to gases condensing into liquids (e.g., steam becoming water) or liquids freezing into solids (e.g., water turning into ice).
Why Other Options Are Incorrect
- Option A (Size Changes): The size of a substance doesn’t directly cause a change in state; it’s the energy and movement of particles that matter.
- Option C (Different Matter): Changing states doesn’t mean the substance turns into something else. The chemical composition remains the same (e.g., water remains H2O in all states).
- Option D (None): This option is incorrect because temperature indeed plays a crucial role in changing states.
Conclusion
In summary, the change of a substance from one state of matter to another is primarily due to temperature changes, affecting the energy and movement of its particles. Understanding this concept helps us grasp the behavior of materials in our everyday lives.
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