changes for reactions from hydration of MgSO4 or formation of June 2002 enthalpies of combustion or CaCO3 Unit 2 Q1 from enthalpies of formation. Students practice a range of June 2009 calculations using Hess’s Law. Unit 2 Q2a January 2013 Unit 2 Q3a and 4 Required practical 2 Measurement of an enthalpy change. 3.1.4.4 0.6 Recall the meaning of the Students practice a range of January 2013 Bond enthalpies. weeks term mean bond enthalpy. calculations using bond enthalpies Unit 2 Q6 Understand the term Calculate enthalpy changes (students could compare the January 2006 mean bond enthalpy. using mean bond calculation of the enthalpy of Unit 2 Q1 enthalpies. combustion of a fuel using bond Use mean bond enthalpies with both the theoretical June 2005 enthalpies to calculate Understand why most bond and experimental values). Unit 2 Q1 approximate values for enthalpies are mean for reactions. values. January 2003 ΔH Unit 2 Q2 Understand why most bond enthalpies are mean values. reactions and Group 7 (2.4 weeks)
changes for reactions from enthalpies of combustion or from enthalpies of formation. hydration of MgSO4 or formation of CaCO3 Students practice a range of calculations using Hess’s Law. June 2002 Unit 2 Q1 June 2009 Unit 2 Q2a January 2013 Unit 2 Q3a and 4 Required practical 2 Measurement of an enthalpy change. 3.1.4.4 Bond enthalpies. Understand the term mean bond enthalpy. Use mean bond enthalpies to calculate approximate values for ΔH for reactions. Understand why most bond enthalpies are mean values. 0.6 weeks Recall the meaning of the term mean bond enthalpy. Calculate enthalpy changes using mean bond enthalpies. Understand why most bond enthalpies are mean values. Students practice a range of calculations using bond enthalpies (students could compare the calculation of the enthalpy of combustion of a fuel using bond enthalpies with both the theoretical and experimental values). January 2013 Unit 2 Q6 January 2006 Unit 2 Q1 June 2005 Unit 2 Q1 January 2003 Unit 2 Q2 reactions and Group 7 (2.4 weeks)
AQA-7404-B-SOW.DOCX