Question

Calculate and show the work of the enthalpy of the reaction, entropy of the reaction, the work of the system(W=P∆V), the change in internal energy, Gibbs free energy for:

Answer 1

The following Transesterification process

Answer 2

And the combustion of the resulting biodiesel fuel from the Transesterification process in any car.

Answer 3

Here are better equations

Answer 4

And picture

Answer 5

I failed in my previous assignment and this is my second chance and my brain is splitting in half again. I was hospitalized and now I don't get anything.

Answer 6

Transesterification
refers to a reaction between an ester of one alcohol and a second alcohol to form an ester of the second alcohol and an alcohol from the original ester, as that of methyl acetate and ethyl alcohol to form ethyl acetate and methyl alcohol ( see also interesterification. Chemically, transesterification means taking a triglyceride molecule or a complex fatty acid, neutralizing the free fatty acids, removing the glycerin and creating an alcohol ester. This is accomplished by mixing methanol with sodium hydroxide to make sodium methoxide. This liquid is then mixed into vegetable oil. The entire mixture then settles. Glycerin is left on the bottom and methyl esters, or biodiesel, is left on top. The glycerin can be used to make soap (or any one of 1600 other products) and the methyl esters is washed and filtered.

Answer 7

Diesel fuel molecule represented as C16H34
• Chemically correct air-fuel ratio assumes all fuel burnt to CO2and H2O
• C16H34+ 24.5O2+ 92N2　ーー＞92N2+ 16CO2+ 17H2O
Chemically correct air to fuel ratio: 14.9: 1
Chemically correct air to fuel ratio: 12.5: 1

For more information for transesterification
A simplified representation of biodiesel production:
Transesterification
• Chemical reaction between methanol or ethanol and a vegetable
oil or animal fat
• Requires a catalyst, such as caustic soda (NaOH) or KOH
• Removal of glycerin reduces viscosity