Unit 6 · Thermochemistry

Chapter 6.2

Calorimetry and the Energy of Phase Changes

Water at a rolling boil never gets hotter than 100 degrees no matter how high the flame; every joule goes into pulling molecules apart. A thermometer in a styrofoam cup can measure that.

in preparation · lesson 26 of 45

By the end

  1. 01Compute heat from mass, specific heat capacity, and temperature change
  2. 02Use calorimetry data to find the heat of a dissolution or reaction
  3. 03Explain why temperature holds constant during a phase change
  4. 04Compute the energy of a phase change from moles and its molar enthalpy

In unit 6

  1. 6.1Endothermic, Exothermic, and How Heat Actually Moves
  2. 6.2Calorimetry and the Energy of Phase Changes
  3. 6.3Enthalpy of Reaction and Bond Enthalpies
  4. 6.4Enthalpies of Formation and Hess's Law
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