Carbon Dioxide, is a natural occurring chemical compound that consists of one carbon atom and two oxygen atoms. On Earth carbon dioxide is released into the atmosphere from respiration, combustion of coal or hydrocarbons, and respiration. However most of the carbon dioxide that is released into the atmosphere is removed by organisms that conduct photosynthesis. Photosynthesis is the processes in which organisms, such as, plants, algae and cyanobacteria (bacteria that obtain their energy from photosynthesis), remove carbon dioxide from the atmosphere and release oxygen. On the other hand, in confined cabins of spacecraft, like the space shuttle or space stations, there are no plants to remove the carbon dioxide, so they must remove the carbon
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One of the most famous example of the use of lithium hydroxide canisters to remove carbon dioxide was on the Apollo 13 mission. The chart below shows the percent composition of carbon dioxide and its effect on the human body. The chemisorption (a kind of absorption in which involves a chemical reaction between a substance and the absorbate, substance that is absorbed) of CO2 is a two step reaction in which lithium hydroxide monohydrate (LiOH•H2O) is first formed by the exothermic reaction. An exothermic reaction is a chemical reaction that releases energy in the form of light or heat. In this reaction it is the reaction between lithium hydroxide and water vapour to form lithium hydroxide monohydrate. LiOH(s) + H2O(g) LiOH•H2¬O(s)
This reaction is followed by the endothermic formation of lithium carbonate. An endothermic reaction is the exact opposite of an exothermic reaction in which in an endothermic reaction, is a reaction that absorb energy from its surroundings in the form of heat. In this reaction lithium hydroxide monohydrate reacts with carbon dioxide to produce lithium carbonate and …show more content…
Stoichiometry is used to gather information about chemical reactions, using laws, and mathematics, to predict the outcomes of a reaction, whether they took form as a solid, liquid, or gas. Some of the laws that are used in Stoichiometry are, law of conservation of mass and the law of definite proportions. The Law of conservation of mass states that if you have a given total mass of your products, should equal the total mass of your reactants. Mass is not lost or gained in a reaction, rather the atoms are being rearranged. Law of definite proportions states that a specific compound always contains the same elements, and proportions of those elements. For Example, water, H2O, always has 2 hydrogen atoms attached to an oxygen atom, regardless of the quantity the ratio of hydrogen to oxygen will always be one part hydrogen to eight parts oxygen. Stoichiometry is very important for carbon dioxide scrubbers, because chemists must determine the mass value of lithium hydroxide to bring with them into space for them to survive. If they have too little lithium hydroxide the astronauts would die of carbon dioxide
One of the most famous example of the use of lithium hydroxide canisters to remove carbon dioxide was on the Apollo 13 mission. The chart below shows the percent composition of carbon dioxide and its effect on the human body. The chemisorption (a kind of absorption in which involves a chemical reaction between a substance and the absorbate, substance that is absorbed) of CO2 is a two step reaction in which lithium hydroxide monohydrate (LiOH•H2O) is first formed by the exothermic reaction. An exothermic reaction is a chemical reaction that releases energy in the form of light or heat. In this reaction it is the reaction between lithium hydroxide and water vapour to form lithium hydroxide monohydrate. LiOH(s) + H2O(g) LiOH•H2¬O(s)
This reaction is followed by the endothermic formation of lithium carbonate. An endothermic reaction is the exact opposite of an exothermic reaction in which in an endothermic reaction, is a reaction that absorb energy from its surroundings in the form of heat. In this reaction lithium hydroxide monohydrate reacts with carbon dioxide to produce lithium carbonate and …show more content…
Stoichiometry is used to gather information about chemical reactions, using laws, and mathematics, to predict the outcomes of a reaction, whether they took form as a solid, liquid, or gas. Some of the laws that are used in Stoichiometry are, law of conservation of mass and the law of definite proportions. The Law of conservation of mass states that if you have a given total mass of your products, should equal the total mass of your reactants. Mass is not lost or gained in a reaction, rather the atoms are being rearranged. Law of definite proportions states that a specific compound always contains the same elements, and proportions of those elements. For Example, water, H2O, always has 2 hydrogen atoms attached to an oxygen atom, regardless of the quantity the ratio of hydrogen to oxygen will always be one part hydrogen to eight parts oxygen. Stoichiometry is very important for carbon dioxide scrubbers, because chemists must determine the mass value of lithium hydroxide to bring with them into space for them to survive. If they have too little lithium hydroxide the astronauts would die of carbon dioxide