Video Summary: Endothermic and Exothermic Phase Changes
The video explains that phase changes are physical changes where a substance transitions between states of matter, such as solid, liquid, or gas. These changes can be:
Endothermic, meaning they absorb heat from the surroundings, causing the surroundings to cool down.
Examples:
Melting (solid → liquid)
Vaporization (liquid → gas)
Sublimation (solid → gas)
Exothermic, meaning they release heat to the surroundings, causing the surroundings to warm up.
Examples:
Freezing (liquid → solid)
Condensation (gas → liquid)
Deposition (gas → solid)
To remember the difference:
Endothermic sounds like “into” – heat flows into the substance.
Exothermic sounds like “exit” – heat exits the substance.
Exothermic and Endothermic Phase Changes
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