Physical Change vs Chemical Change — Difference (with Table)
Physical Change vs Chemical Change compared side by side — a 5-row comparison table and 4 key points. Class 9 Chemistry, free and no sign-up.
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TL;DR: Physical Change vs Chemical Change compared side by side — a 5-row comparison table and 4 key points. Class 9 Chemistry, free and no sign-up.
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The main difference between Physical Change and Chemical Change: Physical and chemical changes are two types of changes matter undergoes, essential for CBSE Class 9 Chemistry. Distinguishing them is crucial for understan
Physical Change vs Chemical Change — Comparison Table
| Basis | Physical Change | Chemical Change |
|---|---|---|
| Definition | Change in form without new substance | Formation of new substance with new properties |
| Reversibility | Usually reversible | Mostly irreversible |
| Chemical bonds | Bonds not broken | Bonds broken and formed |
| Energy change | Minimal energy change | Significant energy absorbed or released |
| Examples | Melting, freezing, cutting, dissolving | Burning, rusting, cooking, digestion |
Key Points
- Physical change alters appearance but not substance; chemical change creates new substances
- Physical changes are reversible by physical means; chemical changes require chemical reactions
- Burning, rusting, cooking are chemical; melting, cutting, dissolving are physical
- Chemical changes have color change, gas formation, heat/light release, precipitate formation