The Anime Appreciation Society!! [Anti-Derailment]

DeletedUser

Guest
I like bleach, but sometimes the short 13 or 26 episode Anime series are the best.

In story line, content and meaning.

Animes with odd numbers like Code Geass are an expection, that Anime was good too :D
 

DeletedUser

Guest
Azumanga Daioh!

Or however it's spelt.
Only anime i've ever watched.
 

DeletedUser

Guest
Lol higurashi is so funny weneva they switch to he really cartoony mode i.e. when the anime figures turn into childlike drawing ;)
 

DeletedUser

Guest
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DeletedUser

Guest
now for episode 2 of higurashi ;)

Then you havn't even got close too the exiting stuff:)

Judge it a little after 4 eps, but not too much becouse it's after that the confusing parts begin^^
 

DeletedUser

Guest
In the late 19th century, crude oil, as recovered from the ground, could be distilled to separate the liquid materials by their boiling points. Remember that crude oil is a mixture of thousands of individual chemical compounds, ranging from very low molecular weight hydrocarbons such as propane (C3H8) to individual hydrocarbons with 30 or more carbon atoms.
These early refiners discarded the low boiling fractions, the part we now call gasoline, and recovered the more valuable , higher boiling, kerosene for lighting and heating. But the internal combustion engine required a lower boiling fuel than kerosene because the fuel had to vaporize in the engine cylinder, and electrical service replaced much of the demand for kerosene.
So turn of the last century chemists developed the refinery practice of "cracking"; heating the crude to very high temperatures in the absence of air. They found they could produce additional amounts of the gasolene fractions by what seemed to be a process of rupturing chemical bonds to get smaller molecules.
But they also found that the hydrocarbons produced in the cracking process had no better quality; they knocked, as much as the fractions taken from the uncracked crude. They had learned that branched chain hydrocarbons improved fuel performance and the early fuel engineers developed an experimental measurement of fuel quality based on knocking called octane number.
Analysis of the cracking results showed that these cracked fuels consisted of about the same percentage of "branched-chain" hydrocarbons as the uncracked material. For example, the hexanes present (C6H14), were no more likely to have branches in the links among the six carbons than be a straight, linear chain.
We first want to show how the principles of chemistry explain how these high temperature cracking operations did not give branched chain substances.
Why Hexane Does Not Form Branched Chains in Cracking: Among the most common components of gasoline are the hexanes, (C6H14). A six carbon chain can be constructed in a number of configurations and many structural isomers are possible. The National Institute of Science and Technology lists for us thermochemical and other data on eleven of these hexane isomers.
We know from our thermochemistry and thermodynamics that we can determine a standard enthalpy and entropy of formation for any substance. These standards represents the properties of formation of the substance, from the elements. And the higher the standard enthalpy, the less stable, more energetic the species is. Standard enthalpy and entropy are state property, unaffected by the pathway by which it was generated.
Consider one potential reaction in a high temperature cracking process - the conversion of a straight-chain octane, n-hexane to its branched isomer, 2,2-dimethylbutane. The question is, if we had n-hexane in active transformation of one to the other and back, as shown below, what could we convert one to the other? Would this reaction be spontaneous? (Recognize, MANY other chemical reactions are possible; let us just choose this one for the moment:
(C6H14)n-hexane <=> (C6H14)2,2-dimethylbutane
We can get an idea on this by looking at standard states of 25 degrees Celsius and one atmosphere pressure operation in the gas phase. Remember that the cracking operation is FAR from the standard state.
We start with all n-hexane. We know that the spontaneity of a process comes from considering the Free Energy (G) and that for a process to be spontaneous, the value of delta G in the equation below must be negative:
delta G0 = delta H0 - T delta S0
We find at the NIST site, values for the standard enthalpies and entropies for the two substances in the gas phase:
delta H0 kcal.mol S0 cal/mol*K n-hexane -167 +389 2,2-dimethylbutane -186 +359
Enthalpy for the reaction:
(Change in enthalpy, products minus reactants)
delta H0 2,2-dimethylmethylbutane - delta H0 n-hexane = delta H
-186kcal/mol - (-167kcal/mol) = -19kcal/mol
Entropy for the reaction:
(Change in entropy, products minus reactants)
S0 2,2-dimethylmethylbutane - S0 n-haexane = delta S
359cal/mol*K - 389cal/mol*K = -30cal/mol*K
Free Energy:
delta G = delta H - T delta S
at standard temperature:
delta G0 = -19kcal - (298K)(-30cal/K) = -10kcal
So at room temperature, the reaction is spontaneous - that is it CAN occur. But please be warned. REmember your study of kinetics. A reaction that CAN occur, will NOT OCCUR if the activation energy is not available to bring the reactant to the "transition state". This process, just like many spontaneous process does not occur at modest temperatures.
Let us lookhigher temperatures, let us say 400 degrees Celsius, where we might expect the cracking to occur, we find:
delta G0 = -19kcal - (673K)(-30cal/K) = +1kcal
So the process of branching at 400 degress Celsius is not spontaneous.
A process can be spontaneous at a low temperature - and not occur because of kinetic reasons such as the rate is so low because a large activation energy is required.

The same process can reach a temperature at which it will not take place because it is no longer spontaneous. The negative effects of decreasing entropy overcome the effect of an exothermic process.​
Why Cracking Works - Why Hexane Cracks to Lower Molecular Weight Fragments: Let us propose an alternate equation for hexane behavior on heating. Let us write a breakdown of the hexane again to give two products, propane and propene. The balanced equation is:​
C6H14g(Hexane) --> C3H8g (Propane)+ C3H6g(Propene)
delta H0 kcal.mol S0 cal/mol*K n-hexane
-167​
+389 propane -104 +270 propene +21 +267
Enthalpy for the reaction:
(Change in enthalpy, products minus reactants)
delta H0 (propane+propene) - delta H0 n-hexane = delta H
-83kcal/mol - (-167kcal/mol) = 84kcal/mol
Entropy for the reaction:
(Change in entropy, products minus reactants)
S0 (propane+propene) - S0 n-haexane = delta S
537cal/mol*K - 389cal/mol*K = 148cal/mol*K
Free Energy:
delta G = delta H - T delta S
at standard temperature:
delta G0 = 84kcal - (298K)(148cal/K) = 44kcal
So at room temperature, the reaction is not spontaneous.
Let us lookhigher temperatures, let us say 400 degrees Celsius, where we might expect the cracking to occur, we find:
delta G0 = 84kcal - (673K)(148cal/K) = -16kcal
So the process of splitting at 400 degress Celsius is spontaneous.
A process can be non spontaneous at a low temperature - because it requires heat.

The same process can reach a temperature at which it will be spontaneous. The endothermic heat properties are overcome by the increased entropy of the products. In this reaction, we are making two molecules and that factor of increased disorder allows the cracking process to occur.​
 

DeletedUser

Guest
:lol:

and you expected me to copy and paste the work I actually done on the petrochemical industry on here?


Proton City tagged as “City of the Future”, is a new township with industrial, commercial and residential activities spread over 4,000 acres (16 km²). It is located about 5 km north of Tanjung Malim, a town in Perak, Malaysia, and houses the state-of-the-art RM1.8 billion Proton car assembly plant. To be fully developed by 2020, Proton City aims to be home to Malaysia’s automobile industry. Undertaken by Proton City Development Corp Sdn Bhd, a joint venture between DRB-Hicom Bhd and Proton Bhd, it started in 1996 with an initial investment of RM2.5 billion, beginning with the construction of the Proton plant. The Proton plant has a workforce of more than 2,000 and most of them are expected to live in the area. When Proton City is fully developed, it would have a population of about 240,000.
The first settlement in the area - 252 units of apartments - were formally handed over to the buyers recently. These apartments have common facilities that include car and motorcycle parking bays, children’s playground, BBQ area, car wash areas, mosque and a nursery/kindergarten on the ground floor of each block and a multipurpose hall. Parcels 19 and 20 when completed in 2007 will have 1,091 apartments, 336 units of single- and double-storey terrace houses, 86 semi-detached houses, 37 bungalows and 36 shop-offices.
Proton City is also expected to be home to students and staff of the Universiti Pendidikan Sultan Idris (UPSI), which a few years ago was known as Sultan Idris Teachers’ College, one of the country’s oldest teachers’ training institutions. UPSI, occupying 800 acres (3.2 km²) within Proton City, is expected to have a student population of 20,000 within four years.
The next phase of development at Proton City is the industrial component, which will see the construction of 81 factory lots for the national car’s vendors. Other public amenities such as schools, mosque, park, recreational club and man-made wetlands of 24 acres (97,000 m²) with a large lake, water storage towers, air quality control station, fire station and power station will also be built in the coming months.
Modern technology will be put to full use, with a command centre that will monitor all smart home systems. There will be intelligent traffic control, telemedicine, e-commerce and other “k-society” amenities and services integrated into living within Proton City.
 
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