CHEM 411 Study Guide - Quiz Guide: Dynamic Equilibrium, Chemical Equilibrium, Reversible Reaction

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13 Dec 2017
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Chem study guide: equilibrium: calculating equilibrium concentrations, the theory of chemical equilibrium tells us that the species involved in a reversible reaction will eventually arrive at constant concentrations. Let"s consider the following reaction: n2+ o2 2no. Initially, the concentration for each species is as follows: [n2]0 = [o2]0 = 0. 1 m, and. [no]0 = 0 m. the value of keq for this reaction is known to be 0. 1 (we will assume that this experimentally determined quantity is given to us). The coefficients present in the balanced equation tell us how many moles of atoms or molecules participate in the reaction. Using these coefficients, the balanced equation tells us that for every mole of n2 and mole o2 consumed, 2 moles of no are produced. We can designate x as the change in concentration of n2 and o2. As reactants located on the left hand side of our balanced equation, the sign is negative as they are being consumed.

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