As showing that the more carbons a straight-chain

As the number of carbons
increases the Van der Waals forces of attraction increase which causes the
viscosity to increase4. The bulkier the alkane becomes the thicker
the viscosity develops. This graph shows an exponential relationship between
room temperature viscosity and the number of carbons in the alkane.The specific heat capacity
increases with the number of carbon-carbon bonds because of the increase in
temperature rise. The increase in kinetic energy helps more carbon bonds form
which is a direct correlation from the increase in temperature. This
correlation can also be proved by showing that the more carbons a
straight-chain alkane can contain a smaller amount of energy. From this graph
you can see a perfect linear relationship between specific heat capacity and
the number of carbons in the alkane.Part of this first task was to
take the information from Table 1 and plot it onto a graph. Graphical representation
is a great way to show visually how a property is related to an independent
variable. Three separate figures were made to show how each property was
affected by the number of carbons in a straight-line alkane in an easy to read
fashion. This information was split into three graphs instead of four to aid
the reader in connecting trends with different properties that share similar
units. Because the data was filled in from one through eight carbons in a
straight-chain alkane you cannot interpolate because the information is already
filled in completely. You can extrapolate data past eight carbons by using
either a linear or logarithmic equation. 

In this graph it is shown that
as the number of carbons increases the Gibbs free energy of formation will
increase. This happens because as the number of carbon-carbon bonds goes up the
more energy there is available to initiate a chemical process3. This
is due to the decrease in spontaneity from the carbon-carbon bonds and the
inverse relationship it shares with the enthalpy of vaporization. As the number
of carbons increases in the alkane the enthalpy of vaporization will decrease.
This decrease occurs because as the carbon-carbon interactions go up the amount
of heat energy transferred decreases3. The more carbon bonds that
are formed the stronger the Van der Waals forces of attraction which results in
a lower enthalpy of vaporization. From this graph you can see that Gibbs free
energy of formation and the enthalpies of vaporization have an opposite linear
relationship directly related to the number of carbons in the alkane.

I am working
on this assignment to further my engineering professionalism and skills for my
future workplace. This assignment will be completed by January 26th,
2018 for Professor Veronica Burrows’ chemical engineering lab. This assignment
will provide me with the tools I need to be successful in future endeavors. I
will become proficient in making tables and graphs while also becoming more
familiar with plagiarism and how to avoid it. While completing this assignment
I expect myself to be able to search for credible information while properly
citing each website that I use. I will also be able to use my knowledge of
energy formation, specific heat, enthalpy of vaporization, and viscosity to be
able to compile all the information in a concise and logical way while also
following the format.

 

For this assignment
I plan on starting early to make sure that I get the technical information
correct while also successfully keeping the formatting intact. My biggest
weakness that I will have to look out for would have to be properly citing all
my sources. When you are researching for a lab report it is sometimes easy to
forget that you grabbed your information from another source. This also
includes any information that you may have received from talking to another
peer or an undergraduate teaching assistant. I will put a conscience effort to
finish this assignment on my own while also citing all my outside sources. After
the completion of this assignment I should be able to properly format tables
and graphs by presenting the information succinctly while also properly
labelling and citing each task. I will also be able to prevent future
plagiarism by properly quoting and paraphrasing my sources.

 

 

Organization
of Data

 

The first task at hand is to successfully
compile multiple pieces of chemical information about alkanes into a
professional and easy to read table. This table shows different physical
properties and relates them back to the number of carbons that are present in
that alkane. Creating an easy to read table allows the reader to be able relate
each piece of information to one another in a clear and precise manner. The
Gibbs free energy of formation, specific heat capacity, and enthalpies of
vaporization were all found in the back of our formerly used thermodynamics
textbook1. The information on viscosities of various alkanes at room
temperature was harder to find and had to be searched for in Perry’s
engineering handbook2. The textbook was an easily accessible yet
reliable source that our instructors have required us to use so I felt very
comfortable finding information. The viscosity was trickier to find. Either the
source itself was unreliable or the information that the website provided was
inconsistent with the effects that naturally should be shown. In the end, a
handbook was found that listed many properties including the desired
viscosities at room temperature. From this compiled data you are able to see
that as the number of carbons in the alkane goes up the Gibbs free energy of
formation, specific heat capacity, and the viscosity all increase while the
enthalpy of vaporization decreases. 

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