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How many liters of methane measured at 23.0 C and 768 mm Hg must be burned to provide the heat needed to vaporize 3.84 L of water at 100 C delta H of combustion 8.90102 kJ CH4 For water at 100 C?
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∙ 8y ago
dude we have like an hour left to finish this hw
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∙ 15y ago
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Is it true that an electric spark can provide the activation energy needed to start a combustion reaction?
yes
Name and give the chemical formula of 2 or 3 compounds that are made from carbon then provide a drawing for each compound?
There are millions of carbon compounds. Three simple ones are methane, CH4, ethene, C2H2 and ethanol, C2H5OH. Remember the numbers must be subscripts. Answers.com cannot provide drawings.
Sound is measured in watts or amps?
Wattage is the total output of sound volume. Amps refer to the amount of current needed to provide proper power (electricity) to the amplifiers that reproduce the sound.
What material provides the oxygen necessary to the combustion of the charcoal?
Oxidizers provide the oxygen neccesary for the combustion of charcoal. Oxidizers are common in the use of propellants, especially for rockets where there is an environment that has zero atomsphere present. An oxidizer is a type of chemical which a fuel requires to burn. Most types of burning on Earth use oxygen, which is prevalent in the atmosphere. However in space there is no atmosphere to provide oxygen or other oxidizers so rockets need to carry up their own oxidizers. Usually, they are carried in a different tank than the fuel and released in the proper proportion with the fuel when the rocket is fired.
How is electricity produced in Kenya?
Usually, at power plants all over the place. Although some people may have their own (portable) generators powered by combustion engines to provide electricity.
Which fuel gas would provide the greatest amount of heat energy for preheating?
The heat of combustion of hydrogen is 141,9 kJ/g. For methane this value is 55,55 kJ/g. These ar higher values, HHV.
What are the two kind of combustion?
Complete and incomplete. Combustion is a reaction, correct? Take this classic combustion reaction: CH4 + 5O2 -> 4CO2 + 2H2O. In technical terms, combustion is only complete if all the methane and all the oxygen are used up in the reaction. In practical terms we consider combustion complete if all the fuel gas converts to CO2, so we provide an excess of oxygen. There are two kinds of incomplete combustion. The first is when we provide enough oxygen to convert all the carbon to either CO or CO2. (We don't worry about the hydrogen - that element is so reactive it's going to grab oxygen first and leave the carbon to fend for itself.) The second is where we provide so little oxygen the carbon doesn't get a chance to react. This is where soot comes from.
What are two kinds of combustion?
Complete and incomplete. Combustion is a reaction, correct? Take this classic combustion reaction: CH4 + 5O2 -> 4CO2 + 2H2O. In technical terms, combustion is only complete if all the methane and all the oxygen are used up in the reaction. In practical terms we consider combustion complete if all the fuel gas converts to CO2, so we provide an excess of oxygen. There are two kinds of incomplete combustion. The first is when we provide enough oxygen to convert all the carbon to either CO or CO2. (We don't worry about the hydrogen - that element is so reactive it's going to grab oxygen first and leave the carbon to fend for itself.) The second is where we provide so little oxygen the carbon doesn't get a chance to react. This is where soot comes from.
What is an example of a sentence using the word Combustion?
Combustion engines are very efficient. Combustion does not provide much energy.
What gasses are located on Uranus' surface?
methane carbon dioxide gases that do not provide life
What provide more carbon dioxide than any other source?
Fossil fuels (coal and methane)
Is it true that an electric spark can provide the activation energy needed to start a combustion reaction?
yes
How does a turbojet provide power to aircraft?
A turbojet consists of an air inlet, an air compressor, a combustion chamber, a gas turbine and a nozzle. Through this constructions, the turbojets provide power to an aircraft when the air is compressed into the chamber, heated and expanded by the fuel combustion and then allowed to expand out through the turbine into the nozzle where it is accelerated to high speed to provide propulsion.
Which of the enzymes listed is not measured as index of liver function?
You'll have to provide a list
Transfers thermal energy to move pistons that provides power?
A combustion engine transfers thermal energy to move one or more pistons that provide power. An example of a combustion engine is an engine in a car.
What is a motor oil?
A petroleum product specially formulated to provide lubrication, cooling and cleaning inside an internal combustion engine.
Why Methane is a green house gas?
According to US Environmental Agency, Methane (CH4) is a greenhouse gas that remains in the atmosphere for approximately 9-15 years. Methane is over 20 times more effective in trapping heat in the atmosphere than carbon dioxide (CO2) over a 100-year period and is emitted from a variety of natural and human-influenced sources. Human-influenced sources include landfills, natural gas and petroleum systems, agricultural activities, coal mining, stationary and mobile combustion, waste water treatment, and certain industrial process. Methane is also a primary constituent of natural gas and an important energy source. As a result, efforts to prevent or utilize methane emissions can provide significant energy, economic and environmental benefits. In the United States, many companies are working with EPA in voluntary efforts to reduce emissions by implementing cost-effective management methods and technologies.
