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Why is ethanol from sugar cane called biofuel but ethanol from ethene not?
Ethanol from sugarcane is known as a biofuel because the ethanol is derived from a biological, renewable source. Burning this releases recently absorbed carbon dioxide so it is part of the carbon cycle. Ethanol from ethene (or ethylene) is typically produced from fossil fuels, namely petroleum, so it is a non-renewable resource. Burning this releases carbon dioxide that was absorbed millions of years ago, so it is all extra. Burning fossil fuels is causing global warming.
What is the source of the carbon in the sugars made by plant's?
Carbon Dioxide (CO2) from the air.
What is the number one energy source in the oxygen carbon dioxide cycle?
Sunlight is the most important energy source in an oxygen carbon dioxide life cycle.
Which increase the amount of carbon dioxide in the atmosphere acting as a carbon source?
Respiration :)
When plant forms glucose molecules what is its source of carbon atoms?
Carbon dioxide.
How much carbon dioxide does ethanol produce?
The formula for ethanol is CH3CH2OH So for each mole of ethanol burnt it produces 2 moles of carbon dioxide 1 Mole of ethanol is 46 g 2 moles of carbon dioxide is (2 x 44 g) 88 g So each gram of ethanol produces 1.9 grams of carbon dioxide on combustion
What happens when ethanol burns in air?
When ethanol burns in air, it reacts with oxygen to produce carbon dioxide, water vapor, and heat. This is a combustion reaction where ethanol acts as a fuel source and undergoes oxidation to release energy in the form of heat. The balanced chemical equation for the combustion of ethanol is: C2H5OH + 3O2 -> 2CO2 + 3H2O.
What happens when you burn ethanol?
When ethanol is burned, it reacts with oxygen to produce carbon dioxide, water vapor, and heat energy. The chemical reaction is exothermic, meaning it releases more energy than it consumes, making it a good source of fuel for combustion engines.
Which increase the amount of carbon dioxide in the atmosphereacting as a carbon source?
Burning fossil fuels and deforestation are two major human activities that increase the amount of carbon dioxide in the atmosphere, thus acting as a carbon source. When fossil fuels are burned, they release carbon dioxide, and when forests are cleared, the trees that once stored carbon release it back into the atmosphere.
What is the source of carbon atoms in ethyl alcohol?
The source of carbon atoms in ethyl alcohol (ethanol) is typically from carbohydrates, such as sugars and starches, that undergo fermentation by yeast or bacteria. During fermentation, these carbohydrates are broken down into carbon dioxide and ethanol, with the carbon atoms from the carbohydrates ending up in the ethanol molecule.
What is the word equation for ethanol burning in air?
ethanol + oxygen ----> Carbon Dioxide + water (assume complete combustion) CH3CH2OH + 3O2 ---> 2CO2 + 3H2O *also, when a compound is burning,we chemists use the term Combustion, which refers to the exothermic reactions which occur between some fuel source and an oxidant. Thus, "Ethanol burning in air" is rather redundant :]
What is a natural source of sulfur dioxide carbon dioxide and ash in the atmosphere?
Volcanic eruptions are a natural source of sulfur dioxide, carbon dioxide, and ash in the atmosphere. During an eruption, gases such as sulfur dioxide and carbon dioxide are released from the magma, along with ash which is a mixture of fine rock particles and gases.
What are two of the products of fermentation?
Alcohol fermentation is done by yeast and some kinds of bacteria. These microorganisms convert sugars in ethyl alcohol and carbon dioxide. Alcoholic fermentation begins after glucose enters the cell. The glucose is broken down into pyruvic acid. This pyruvic acid is then converted to CO2, ethanol, and energy for the cell. Humans have long taken advantage of this process in making bread, beer, and wine. In these three product the same microorganism is used: the common yeast or Saccharomyces Cerevisae.
What is the formula for alcoholic fermentation?
Fermentation formulaChemical equationC6H12O6 + 2ATP + 2ADP + 4NADH ------> 2C2H5OH + 2CO2 +4ATP + 2H2O + 4NAD+Word equationGlucose + Inorganic phosphate + Adenosine Tri-phosphate + Adenosine di-phosphate + (Reduced) nicotinamide adenine dinucleotide ---------> Ethanol + Carbon dioxide + Adenosine tri- phosphate + water + Nicotinamide adenine dinucleotideThis equation is not comprehensive and the actual process of fermentation incorporates 12 individual enzyme controlled reactions.Further reading:Glycolysis; anaerobic respiration
What is one major source of large scale release of carbon dioxide into the air?
Volcanic eruptions.
What do the chloroplasts of a green plant use carbon dioxide for?
Carbon dioxide is the source of carbon. It is reduced to glucose
What is made when ethanol and oxygen gas combine?
When ethanol and oxygen gas combine, the reaction produces carbon dioxide and water vapor, along with energy in the form of heat. This reaction is a type of combustion, where the ethanol is oxidized by the oxygen gas to produce carbon dioxide and water.
