It occurs with mineral oil. Many oil wells also provide us with natural gas as by-product. Some well produce only natural gas…Natural gas is a clean fuel.
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One of the most disastrous events since the history of chemical industry occurred in Bhopal, the capital city of Madhya Pradesh, on the night of December 02, 1984, in the factory of Union Carbide of India Ltd. (UC1L) due to leakage of Methyl Iso Cynate (MIC) gas.
Ethane gas can be prepared in a laboratory by the cracking of hydrocarbons such as kerosene or candle wax. A simple experimental set-upon for the preparation of ethane (ethylene) by cracking is shown.
The low boiling fraction of petroleum which leaves the fractioning tower as a gas is known as petroleum gas. Petroleum gas is a mixture of ethane, propane and butane.
Natural gas is a naturally occurring mixture of simple aliphatic hydrocarbons and small amount if hydrogen. Among aliphatic hydrocarbons it mainly contains methane (CH4) with a little ethane (C2H6) and propane (C3H8). Thus, methane is the principal constituent of natural gas (up to 97%).
Liquefied Petroleum Gas is considered a good fuel because of the following reasons: LPG has a high calorific value. The calorific value of LPG is about 50 kj/g. It is a very neat and clean domestic fuel. It burns with a smokeless flame and hence does not cause pollution.
W. Kossel and G.N.Lewis (1916) observed that during chemical reactions, atoms of all elements tend to achieve noble gas configurations. Based on this observation, they proposed a theory for the formation of chemical bonds.
The atoms in which the outermost shell is completely filled are more stable. The electronic configuration of neon(2,8) is more stable as compared to those of F(2,7) and Na(2,8,1).: atoms of fluorine, and sodium gain stability by acquiring the electronic configuration of the nearest noble gas neon(2,8).