chapter 9... in this chapter i had learnt about heat of reaction, hess's law, heat formation and heat of combustion.
heat of reaction can be calculated using hess's law and heat of formation. Dr. Aznizam preferred their student to use heat of formation. this is because this method is easy to understand. it depends.
TEST 2... 
this test had covered all the chapter 9 topics. alhamdulillah its better than test 1. but my mark had been deducted (5m) because i'm used a wrong method for the last question. it was realy bad because i did not read the question carefully.
and also.. in this chapter we must MASTER the mass balance. wow! :)
objective:
student should be able
:
- compute heats of formation from experimental data for the enthalpy change of a process with reaction taking place.
- calculate heat of reaction.
- apply general energy balances.