Calorimetry

• q=mc∆T


  Energy required=mass heatedxspecific heat capacityxtemp rise
• Enthalpy


  The heat content of a system at constant pressure
• enthalpy change


  Heat energy change at constant pressure
• Standard conditions


  A pressure of 100 kPa (1 atmosphere), a stated temperature, usually 298 K (25 °C), and a concentration of 1 mol dm-3 (for reactions with aqueous solutions).
• standard enthalpy of formation

  enthalpy change if 1 mole of compound is formed directly from its elements with all reactants and products in standard states and conditions
• Standard enthalpy change of combustion

  The enthalpy change when 1 mole of a substance is completely burned in oxygen, with all reactants and products in standard states and conditions
• Standard Enthalpy change of neutralisation

  The enthalpy change when an acid and alkali react together to form one mole of water, under standard conditions