ThermochemistryA series of free High School Chemistry Video Lessons from Brightstorm.
Specific Heat Specific heat is the amount of heat required to raise one gram of any substance one degree Celsius or Kelvin. The formula for specific heat is the amount of heat absorbed or released = mass x specific heat x change in temperature.
Bomb Calorimeter A bomb calorimeter is used for measuring energy released in a combustion reaction. This reaction takes place in a water bath, so that the water absorbs the energy released and we can measure how much its temperature rises accordingly.
Enthalpy Enthalpy is the heat content of a system at constant pressure, but chemists almost always talk about change in enthalpy rather than total energy. Endothermic reactions have positive changes in enthalpy while exothermic reactions have negative changes in enthalpy.
Thermochemical Equations Thermochemical equations are balanced chemical equations that include the physical states of all reactants and products and the energy change. If energy is a reactant, the reaction is endothermic but if energy is a product, the reaction is exothermic.
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