Reflection /
pcp2 (CHAPTER 9)

 I will now share about what I have learned in chapter 9 Principal Chemical Process 2.actually the topic is just have the same main subtopic like the previous one.Especially in the calculation..I am interest with the subtopic heat of reaction and Hess's law. Heat of reaction are related to the heat of formation and heat of combustion. For Hess law one should know how to manipulate with the chemical equation which is combustion equation and formation equation.

in this topic, the knowledge of some basic and more complex mass balance is applied, for example, mass balnce using the technique of EOR, moleculars or atomic balance. For me, I would prefer using atomic balance though its quite a long calcultion, it is still more comprehensive. after done with mass balence we can proceed to the next step which is do the inlet and outlet table.there have two technique to do the table:

Techniques                                   Refence State

Heat of Reaction                           Use Atomic element of the chemicals

Heat of Formation                         Use Molecular represenatation of the chemicals

 if we are usingheat of formation, Hi would be as follows:

----> Hi=Hf + H

And the total heat generation is:

----> Total H=Hout -Hin

If we are using heat of reaction, Hi would be as follows:

----> Hi=H

While its heat generation is:

----> Total H=EOR1 + (EOR2 + EORn)(if applicable; more than one reaction) +Hout - Hin

that from me.thank you Innocent