Heat of Reactions
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Heat of Reactions Heat of Reactions Objective 4.02 Objective 4.02
description
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. - PowerPoint PPT Presentation
Transcript of Heat of Reactions
Heat of ReactionsHeat of ReactionsObjective 4.02Objective 4.02
Specific HeatSpecific Heat
Amount of energy required to raise the Amount of energy required to raise the temperature of 1g of a substance by 1 degree temperature of 1g of a substance by 1 degree Celsius (or Kelvin). Celsius (or Kelvin). Cp = J/(gCp = J/(g∙∙K) or J/(gK) or J/(g∙°C)∙°C)
q = mCpq = mCpΔΔTT
q = energy lost or gainedq = energy lost or gainedm = massm = massΔΔT = change in tempT = change in temp
Ex: pg 513Ex: pg 513
Heat of VaporizationHeat of Vaporization
The amount of heat required to vaporize The amount of heat required to vaporize 1g of liquid (water) at its boiling point.1g of liquid (water) at its boiling point.
Hv = (J/g)Hv = (J/g)
q = mHvq = mHv
Heat of FusionHeat of Fusion
The amount of energy required to melt one The amount of energy required to melt one g of a solid (water) at its melting point.g of a solid (water) at its melting point.
Hf = (J/g)Hf = (J/g)
q = mHfq = mHf
