In other words it helps us to predict the feasibility of. Thank you Alex sir for all your efforts to help not only myself but all the students who are unable to pay huge amount of tuition fees. The Ellingham diagram helps you to choose the right reducing agent to convert an oxide (ore) to metal. I am very proud of myself scoring such a good mark in mathematics because of only one reason and that is you. The difference between two curves on an Ellingham diagram is a measure of the. For maths I totally believed you and worked hard. interpretation of new calculations and/or measurements accordingly, EG&G Idaho. I have scored 93 marks in maths with a total of 530 without going to any tuition. "Sir I am one of your online +2 students. It's a right moment to express my gratitude Thank you sir" With the help of Ellingham diagram, explain why chromium does not reduce Al2O3 inference. "Sir with the help of your guidance I scored 84 mark in maths public exam. At lower temperature the plots Ag and Hg crosses AG O line. "Sir thank you so much for you sir I got 96 in maths because of you and my hard work.Once again thank you so so much" "Hi sir, I was weak in maths and used to score border marks in maths. Sir seriously I won't get this mark without you "Sir I got 89 I lost my mark due to careless mistakes It was totally because of you I got this mark sir!!! Thank you so much sir” But I came to know about your online classes only when my friend said to me. HL Ellingham diagrams EXPLANATION OF ELLINGHAM DIAGRAMS A reaction will be spontaneous if the value for the standard Gibbs free energy change. Without your online classes I wouldn't have scored 93/100. Tq sir❤❤ veliya cash pay panni sollitharanga apo kooda unga alavuku yarum eduka matinguranga u are such a awesome teacher sir U AR SUCH A SERVICEMAN sir❤❤ It helps us to know the best reducing agent for a particular metal oxide and sulfides. If the PO2 is higher than the value of the equilibrium, the metal will undergo oxidation, and if the value is lower, the oxide will go through reduction.Now I am studying currently 12std sir without u I am nothing in maths, chemistry and physics sir hats off u sir Ellingham diagram is a plot between Gibbs free energy and temperature. Taking an example of the reaction in which magnetite (Fe 3 O 4. 2, where G 0 is called the oxygen potential. 1, and the change in the standard Gibbs energy of this reaction is given by Eq. In general, the reaction in which an element reacts with 1 mole of oxygen to form an oxide is given by Eq. The right portion of the diagram has a PO2 symbol, which reflects the partial pressure of oxygen needed to achieve equilibrium with metal oxide and the metal itself at a certain temperature. This figure is called the Ellingham diagram. As the line moves toward the bottom, the metals become more reactive, making oxides more difficult to reduce. The reactions nearest to the top are the noble metals such as platinum and gold, as the oxides of these metals can be easily reduced and unstable. In an Ellingham diagram, the line position displays the oxide stability as a temperature. So here one molecule of gas is resulting in one molecule of gas. C (s) + O2 (g) CO2 (g): Entropy of solids is negligible. Ratio of carbon dioxide to carbon monoxide which is capable of reducing oxide into metal at a certain temperature There are cases when the entropy is not negative, and the slope will not be upwards.Partial pressure of oxygen in an equilibrium state with metal oxide at a certain temperature.Relative ease in reducing a particular metallic oxide into metal.The three major applications of this diagram include identification of: The slope changes as the subjected material vaporizes or melts. In an Ellingham diagram, the Gibbs free energy of a reaction is plotted against temperature, which can be illustrated in a chain of straight lines where there is a Y-intercept and a slope. Corrosionpedia Explains Ellingham Diagram
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