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687322
enthalpy
Description
Mind Map on enthalpy, created by prisillajohnson9 on 03/28/2014.
Mind Map by
prisillajohnson9
, updated more than 1 year ago
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Created by
prisillajohnson9
almost 11 years ago
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Resource summary
enthalpy
the heat content that is stored in a chemical system
chemical energy
special form of potential energy that lies within chemical bonds
conservation of energy
amount of heat leaving chemical system = amount of heat being given to the surroundings
heat loss in chemical system = heat gain to surroundings
temperature increase
heat gain in chemical system = heat loss from the surroundings
temperature decrease
enthalpy change
the heat exchange with the surroundings during a chemical reaction, at a constant pressure
difference between the enthalpy of the products and the enthalpy of the reactants
exothermic
enthalpy of the products< the enthalpy of reactants
heat loss to from the chemical system to the surroundings
-ve sign coz heat has been lost
endothermic
enthalpy of the products>the enthalpy of the reactants
heat gain to the chemical system from the surroundings
+ve sign coz of heat gain
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