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Heat of Reactions

Heat of Reactions. Objective 4.02. Specific Heat. Amount of energy required to raise the temperature of 1g of a substance by 1 degree Celsius (or Kelvin). Cp = J/(g ∙ K) or J/(g ∙°C) q = mCp Δ T q = energy lost or gained m = mass Δ T = change in temp Ex: pg 513 .

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Heat of Reactions

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  1. Heat of Reactions Objective 4.02

  2. Specific Heat • Amount of energy required to raise the temperature of 1g of a substance by 1 degree Celsius (or Kelvin). • Cp = J/(g∙K) or J/(g∙°C) q = mCpΔT q = energy lost or gained m = mass ΔT = change in temp Ex: pg 513

  3. Heat of Vaporization • The amount of heat required to vaporize 1g of liquid (water) at its boiling point. • Hv = (J/g) q = mHv

  4. Heat of Fusion • The amount of energy required to melt one g of a solid (water) at its melting point. • Hf = (J/g) q = mHf

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