enthalpy

Description

Mind Map on enthalpy, created by prisillajohnson9 on 03/28/2014.
prisillajohnson9
Mind Map by prisillajohnson9, updated more than 1 year ago
prisillajohnson9
Created by prisillajohnson9 almost 11 years ago
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Resource summary

enthalpy
  1. the heat content that is stored in a chemical system
    1. chemical energy
      1. special form of potential energy that lies within chemical bonds
      2. conservation of energy
        1. amount of heat leaving chemical system = amount of heat being given to the surroundings
          1. heat loss in chemical system = heat gain to surroundings
            1. temperature increase
            2. heat gain in chemical system = heat loss from the surroundings
              1. temperature decrease
            3. enthalpy change
              1. the heat exchange with the surroundings during a chemical reaction, at a constant pressure
                1. difference between the enthalpy of the products and the enthalpy of the reactants
                2. exothermic
                  1. enthalpy of the products< the enthalpy of reactants
                    1. heat loss to from the chemical system to the surroundings
                      1. -ve sign coz heat has been lost
                      2. endothermic
                        1. enthalpy of the products>the enthalpy of the reactants
                          1. heat gain to the chemical system from the surroundings
                            1. +ve sign coz of heat gain
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