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- 1. Heat Energy The sum total of the kinetic energies of the particles in a sample of matter
- 2. Units used for heat energy Joule = SI unit calorie = Older system 1 calorie = 4.184 Joule For food heat energy Calorie = 1 000 calories
- 3. Temperature A measure of the average kinetic energy of the particles in a sample of matter
- 4. Units used for temperature based on the expansion of liquids in a tube when heated
- 5. Degree Celsius – developed by Anders Celsius He assigned zero as freezing point of water and one hundred as the boiling point of water
- 6. Kelvin(K) the unit of temperature that is the SI unit of temperature developed by William Thomson, Lord Kelvin Freezing point of water = 273 K Boiling point of water = 373 K
- 7. Compare the heat and temperature of water at 44 degrees Celsius
- 8. Heat Capacity The amount of heat energy needed to raise the temperature of a given sample of matter by one Celsius degree
- 9. Specific Heat The amount of heat required to raise the temperature of 1 gram of substance by 1 degree Celsius Units used are Joules/gram-C or calorie/gram-C
- 10. Formula for calculating heat energy <ul><li>Heat = mass x specific heat x change in temperature </li></ul><ul><li>Joules = grams x Joules x degrees Celsius </li></ul><ul><li>grams-degrees C </li></ul><ul><li>Symbolic Equation </li></ul><ul><li>q = m x c x t </li></ul>
- 11. Formula arranged to find Specific Heat <ul><li>Specific Heat = heat energy </li></ul><ul><li>mass x t </li></ul>

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