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Difference Between Temperature and Heat
- Temperature is the average kinetic energy of the molecules in a substance, not just how hot it feels.
- Heat is the flow of energy between objects due to temperature differences, distinct from temperature itself.
Heat Capacity and Specific Heat Explained
- Heat capacity depends on both material and quantity; specific heat is energy needed to raise temperature by 1°C.
- Higher specific heat means more energy goes into forms not increasing temperature, like molecular rotation.
Why You Can Walk on Hot Coals
- Walking on hot coals is possible because coals have low heat capacity and poor conductivity.
- The small amount of hot coals transfers minimal heat to feet, especially with sweat protection and brief contact.