Knowing the learning objectives is the first step in acing Chemistry. Master the essential concepts and apply them to interesting Chemistry questions confidently. Topical syllabus objective checklists are available here for your self-assessment. These checklists are based on Cambridge O-level Syllabus. Conduct self assessment when you revise. Tick against objectives that you can confidently say ‘I Can Do It’. Revise objectives that you are unsure of. Knowing what you need to know builds confidence in tackling questions.
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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.|