Question

The reaction N2(g) + O2(g) ⇌ 2NO(g) is carried out at a temperature at which Kc = 0.055. The reaction mixture starts with only the product, [NO] = 0.0300 M, and no reactants. Part A: Find the equilibrium concentrations of N2 at equilibrium. Part B: Find the equilibrium concentrations of O2 at equilibrium. Part C: Find the equilibrium concentrations of NO at equilibrium.

          The reaction N2(g) + O2(g) ⇌ 2NO(g) is carried out at a temperature at which Kc = 0.055. The reaction mixture starts with only the product, [NO] = 0.0300 M, and no reactants.

Part A: Find the equilibrium concentrations of N2 at equilibrium.

Part B: Find the equilibrium concentrations of O2 at equilibrium.

Part C: Find the equilibrium concentrations of NO at equilibrium.
        
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Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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The reaction N2(g) + O2(g) ⇌ 2NO(g) is carried out at a temperature at which Kc = 0.055. The reaction mixture starts with only the product, [NO] = 0.0300 M, and no reactants. Part A: Find the equilibrium concentrations of N2 at equilibrium. Part B: Find the equilibrium concentrations of O2 at equilibrium. Part C: Find the equilibrium concentrations of NO at equilibrium.
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Transcript

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00:01 Dear students, question is, the reaction n2 plus o2 gives rise to 2 no is carried out at a temperature at which kc value is 0 .055.
00:10 The reaction mixture starts with only the product no, concentration is 0 .03 molar and no reactants.
00:18 We have to calculate the equilibrium concentration of nitrogen, oxygen and nitric oxide.
00:26 Now let us write the equation once again, n2 plus o2.
00:32 Gives rise to 2 no.
00:34 So initial concentration of no is 0 .03 molar, these are 0.
00:41 For example, at equilibrium, 0 .03 x moles of no has broken into nitrogen and oxygen.
00:53 Now since 2 moles gives 1 mole of nitrogen and 1 mole of oxygen, so x -mole will give xx2 mole of nitrogen and x by 2 mole of oxygen.
01:04 Now, we know kc equal to molar concentration of for this equation no is the product.
01:14 So we will write in the product form, no squared by n2, divided by n2, implies kc is 0 .055, which is equal to 0 .03 minus x whole square divided by x by 2 multiplied by 2 multiplied by x by 2 implies 0 .055 equal to 0 .03 minus x multiplied by 2 by x, you can write as whole square...
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