The monomer of polyethylene is ethylene - H2C=CH2. {eth=2 carbons, ene=a CC double bond} Two methane - H2CH2 or H3CH - molecules condense to form ethane: H3C-CH3 + 2 H+. Another 2 H+ removal, or condensation, gives the -ene H2C=CH2.
Polymerization of the -enes is the next step. Via another condensation reaction, a poly-eth-ene appears thusly: H2C=CH|HC=CH|HC=CH|HC=CH|HC=CH|HC... & etcetera.
I have heard that Methane can be used to form longer chain hydrocarbon fuels, -why not the much higher energy bonded Acetylene?
To react completely with one molecule of methane (CH4), two molecules of oxygen (O2) are needed. This is because the balanced chemical equation for the combustion of methane is CH4 + 2O2 → CO2 + 2H2O. Each molecule of methane requires two molecules of oxygen to form carbon dioxide and water.
All the combustion reactions I know of are exothermic because heat is released instead of absorbed. And propane gives more energy than methane cause it has more Cs and Hs to react with Oxygen, so one mole of propane will react more and form more product than one mole of methane and giving out more energy. All the combustion reactions I know of are exothermic because heat is released instead of absorbed. And propane gives more energy than methane cause it has more Cs and Hs to react with Oxygen, so one mole of propane will react more and form more product than one mole of methane and giving out more energy.
Free radicals continue combustion by initiating chain reactions where they react with other molecules to form new radicals, which then react with more molecules, creating a self-sustaining cycle. This chain reaction produces heat and energy, contributing to the sustained combustion process.
Polymers formed from ethene include polyethylene (PE) and ethylene-vinyl acetate (EVA). These polymers have a wide range of applications due to their flexibility, durability, and resistance to moisture and chemicals. Polyethylene is commonly used in packaging, while EVA is used in footwear, adhesives, and solar cell encapsulation.
It forms through addition polymerisation. The double bonds in ethene break to form a long continuous chain ( a polymer) which is polyethylene.
Theotically, methane can't react with Cl2 in shade as UV light is required to initiate the substitution reaction. Only when there is Cl2 can the C-H bond be broken. However, alkene can react directly with Cl2 due to hydrohalogenation.
I have heard that Methane can be used to form longer chain hydrocarbon fuels, -why not the much higher energy bonded Acetylene?
"monomer"
Methane and oxygen react to form water and carbon dioxide and release considerable heat.
They react with ozone. Decompose it and form a chain reaction.
The source of energy used to react chlorine with methane is typically heat, in the form of high temperatures. This helps to initiate the reaction between the two compounds and break the chemical bonds involved.
Carbides of beryllium and aluminium are called methanides because they react with methane gas to form compounds. These carbides have the ability to react with methane in a way that is similar to other metal carbides, which is why they are classified as methanides.
No, methane is not an acid. It is a simple hydrocarbon compound with the chemical formula CH4. Acids typically have a sour taste, can react with metals to form hydrogen gas, and can neutralize bases.
When hydrogen and carbon react, they can form various products depending on the conditions. However, under normal conditions, they typically react to form hydrocarbons such as methane (CH4) or hydrogen gas (H2) and carbon monoxide (CO).
Nitric acid does not react directly with methane under normal conditions. However, in the presence of a catalyst or under high-temperature conditions, methane can be oxidized by nitric acid to form carbon dioxide, nitrogen dioxide, and water. This reaction is not commonly used due to its complexity and the availability of more efficient methods for methane oxidation.
CFC's react with ozone to form oxygen. This forms a chain reaction.