Introduction
Methane is a chemical compound which has the chemical formula CH4. It is the main constituent of the natural gas (50% - 90%) and this is the reason why it is considered as a very important chemical compound in Qatar which depends economically on the exportation of natural gas. On the other hand it has many harmful effects on the earth such as global warming. Methane was discovered by Alessandro Volta in 1776 when he read some papers about flammable air which pushed him to study more about the gas in that phenomena. He noticed some the swamp gas bubbling from a lake next to his house from that moment he also discovered that it can be burned easily He called it “inflammable air from marshlands”, today we call it Methane. Fig 1 (Gas flame)
Chemical and
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2- Stability: chemically it is very stable gas to the extent that it doesn’t react when it is treated with HNO3, K2Cr2O7, and KMnO4.
3- Those are some other physical properties methane is an odourless, colourless, tasteless gas that is lighter than air. It is a non-polar molecule and is insoluble in water. It dissolves in non-polar solvents like alcohol.
Sources of Methane
Methane has anthropogenic and natural sources. It is produced with the decay of organic materials under some specific conditions when the oxygen is lacked. For example in cattle stomachs, wet rice fields and waste deposits. Also methane is realised while pumping oil, mining coal and burning the forests generates some amounts of methane. Pumping oil can result in the emissions of very large amount of methane since it is the primary source for the methane, it is emitted also while transporting, processing, distribution and the transportation of the natural gas. The following chart shows the percentages of the sources of methane.
Fig3(Methane sources
Therefore, the gas chromatography could not be performed to determine its composition. The ratio of the three samples obtained, were not all accurate. The first sample, of pure hexane should have had a ratio close to 100% hexane to 0% heptane. The second ratio should have been close to 50% hexane to 50% heptane and the third should have been the reverse of the first sample, with 0% hexane to 100% heptane. The boiling point of hexane is around 65°C and the boiling point of Heptane is 100°C. The first sample’s error could have occurred due to the late extraction of the sample. When the boiling point was reached, the extraction of the sample from the distillation vial should have occurred immediately, not doing so caused some of the vapors from heptane to be included into the first sample. This could be prevented next time by lowering the heat of the Variac transformer, which would have allowed for the heating of the compound to be slower than what it was
The general chemical characteristic of gas equilibriums is when the concentrations of reactants and products do not change with time. This is known as the state of reversible reaction. At this state, pressure, density, colour and concentration can be recognised. At equilibrium, both the forward and backward reactions are still continuing because the rates of the forward and backward reactions are equal. This leads to the general physical characteristic of gas equilibriums which is the concentration of each substances become constant and the system is said to be at dynamic equilibrium. The equilibrium can be established in physical equilibrium and in chemical equilibrium.
There are many physical properties of neon, such as the fact that it is colorless, odorless, and tasteless. Also, neon is lighter than air. With a density of density 0.89990 g/liter. The freezing point of neon is -248.67° C, and the boiling point of neon is -246.048° C, which is even lower than the boiling point of nitrogen (-195.8°C). When under low pressure, neon emits a bright orange-red glow if a small electric current is passed through it. The electron configuration of neon is 1s22s22p6. The chemical properties of neon include the fact that it is not reactive because it has a full outer shell, and therefore cannot gain or lose any electrons. Because of this, neon belongs to a group of elements called "noble gases." These are all gases which have a full outer shell and cannot react in nature. The period of neon is 2, and the group is 18.
There are four different types of hydrocarbons each having a different homologous series (formula for carbon chain). These being an alkane (formula = CnH2n+2), alkene (formula = CnH2n), alkyne (formula = CnH2n-2), and an alkanol which has the same formulae as an alkane only that is has a hydroxide molecule which replaces one of the hydrogen atoms (refer to figure 3 and
The major sites for the production of ammonia are the intestines, liver, and kidneys. It is biosynthesized through normal amino acid metabolism. The kidneys generate ammonia from glutamine by the actions of renal glutaminase and glutamate dehydrogenase. Ammonia is formed from urea by the action of bacterial urease in the lumen of the intestine, which is absorbed from the intestine by the portal vein. Amines obtained from diet and monoamines that serve as neurotransmitters or hormones can create ammonia by action of amine oxidase. In purine and pyrimidine catabolism, amino groups attached to the rings are released as ammonia.
It is a strong acid. Its crystal structure is body centered cubic. Over 2/3 of all molybdenum is used in alloys.
The main thing in natural gas is methane. Millions of years ago, decaying remains of
Harmful emissions from the landfills escape into the air we breathe. The soil and water are also contaminated from our
The emission of carbon dioxide has contributed to 80% to the heating of the earth atmosphere. Carbon dioxide is produced due the burning of fossil fuels such as natural gas, coal and oil. The burning of fossil fuel is very important in our society today, because it is used for cooking, used to produce electricity, for heating, for cooling and also for transportation. The industrialization has led to the use of fossil fuel for running machines and driving cars. The building of fossil fuel contributes towards 80-90% of the carbon dioxide we find in our atmosphere today. When the ecosystems are altered and vegetation is either burned or took out, the carbon stored in them is relinquished to the atmosphere as carbon dioxide (What causes global climate change, 2005). Methane is another gas being produced in the process which all have served to increase the greenhouse effect in our atmosphere. Methane is produced from the cultivation of rice, from the burning of coal and from cattle, it has increased by 145% due to human
Natural gas consists of gases existing in layers of sediment in either liquefied or gaseous form. It is a common non-renewable resource used for industrial, residential and commercial purposes. In particular, it is an important energy source for heating buildings, providing power to industry and as fuel for vehicles as well as for generating electricity
The most prominent natural source of methane is wetlands. There are countless human actions that cause methane to be released as well. From petroleum and natural gas drilling and coal mining to transportation, humans’ methane production by far outnumbers the emissions of livestock. To be exact, 29% of the world’s total methane production comes from natural gas and petroleum, and 10% comes from coal mining. In addition, 26% is produced by Enteric Fermentation which mostly occurs in swamps from anaerobic decomposition by microorganisms, which accounts for approximately 70% of natural methane in the atmosphere. Another 18% of methane accumulating in the Earth’s atmosphere comes from landfills, which is where mountains of our trash go to rot and seep toxic chemicals into the ground and release methane into the air. An additional 8% comes from “other” undefined sources. In Vermont, for example, only 6% of the methane produced comes from livestock emissions (Johnson). Only 10% of the methane produced globally comes from manure and manure management practices, and many farmers are working to reduce this number as
The link between the number of carbon atoms in a fuel with the amount of energy it releases. Alcohols generally belong to compounds whose molecules are based on chains of carbon atoms. They usually contain one oxygen atom, which is joined to a carbon atom by a singular bond. This makes them different from other compounds.
Chlorine is a greenish yellow gas which combines directly with nearly all elements. Chlorine is a respiratory irritant. The gas irritates the mucous membranes and the liquid burns the skin. As little as 3.5 ppm can be detected as an odour, and 1000 ppm is likely to be fatal after a few deep breaths. It was used as a war gas in 1915. It is not found in a free state in nature, but is found commonly as NaCl (solid or seawater).
Hydrocarbons are compounds formed by carbon and hydrogen atoms. They are used as fuels to produce energy in incomplete and complete combustion reactions. Incomplete combustion occurs when hydrocarbons react with a small amount of oxygen (O2), whilst complete combustion occurs when hydrocarbons react with large amounts of oxygen. Incomplete combustions produce water (H2O), carbon monoxide (CO) and/or soot (C). The CO and soot produced from incomplete combustion can have harmful consequences on humans and the environment. They not only damage human health, but also contribute to the current issue of global warming, ozone formation, and black carbon footprint. That being said, CO is vital to the human body in order to properly function.
...t too expensive for the farmers. The second step is that broader awareness is required. According to Sarah Alexander, “different farmers trust different sources, such as vendors, crop consultants, and university extension services.” Farmers are going to need to be open minded to new things, in order to feed the human race. The last step is farmers need the right incentives. Farmers want to know about the good that they are doing. Farmer’s want to know how they are saving the environment, and how they are producing more food, and feeding more people than they were before.