Self Assessment Checklist
| Energy Changes | I can do this! | |
| (a) | Describe the meaning of enthalpy change in terms of exothermic (∆H = negative) and endothermic (∆H = positive) reactions. | |
| (b) | Represent energy changes by energy profile diagrams, including reaction enthalpy changes and activation energies of reactions. | |
| (c) | Describe bond breaking as an endothermic process and bond making as an exothermic process. | |
| (d) | Explain overall enthalpy changes in terms of the energy changes associated with the breaking and making of covalent bonds. | |
| (e) | Describe hydrogen, derived from water or hydrocarbons, as a potential fuel, reacting with oxygen to generate electricity directly in a fuel cell. | |
