Chapter 17 - Thermochemistry

3/30/2013 Heat Capacity and Specific Heat◦ On what two factors does the heat capacity of anobject depend?• The heat capacity of an object depends on both itsmass and its chemical composition.• The amount of heat needed to increase the temperature ofan object exactly 1°C is the heat capacity of that object.• The specific heat capacity, or simply the specific heat,of a substance is the amount of heat it takes to raisethe temperature of 1 g of the substance 1°C.• Specific heat of water = 4.18 J/g-°C• ref. table B7