HESS LAW/ CYCLES BREIF NOTES/OUTLINE

HideShow resource information
  • Created by: chantel
  • Created on: 04-11-12 08:58
Preview of HESS LAW/ CYCLES BREIF NOTES/OUTLINE

First 140 words of the document:

Ideas of Hess's Cycles
Hess's law is the first law of thermodynamic.
This is were the enthalpy change of a reaction is independent of the reaction route Achieved.
Combustion Data in standard conditions
The standard enthalpy change of combustion is when one mole of a substance is completely burned
in oxygen.
Formation Data in standard conditions
The standards enthalpy change of formation is when one mole of a compound is fromed from its
reactants in standard state.
Reaction Data In Standard Conditions
This is the Standard enthalpy change of a reaction when the molar quantities of the reactants react
in standard states.
Enthalpy Change model
A+B>>>C
Combustion data arrows point downwards
Formation data arrows point upwards.

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all resources »