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For the given reaction at equilibrium agent of 3 kg + 10 2 + half ok if the total pressure at equilibrium is p then calculate kp for the given reaction

Answer»

- 0.025 atmSolution:- The given balanced equilibrium equation is:2NO_2(g)\leftrightarrow 2NO(g)+O_2(g)2NO2​(g)↔2NO(g)+O2​(g)From the equation, there is 2:1 mole RATIO between NO and O_2O2​ .Their equilibrium partial pressure would be in the ratio. Equilibrium partial pressure of OXYGEN is given as 0.25 atm. So, the equilibrium partial pressure of NO = 2(0.25 atm) = 0.50 atmEquilibrium expression for the given equation is written as:Let's plug in the values in it and solve it for equilibrium partial pressure of NO_2NO2​ . Let's SAY the equilibrium partial pressure of nitrogen dioxide is p.100=\frac{(0.50)^2(0.25))}{p^2}100=p2(0.50)2(0.25))​100=\frac{0.0625}{p^2}100=p20.0625​On rearranging the above equation:p^2=\frac{0.0625}{100}p2=1000.0625​On taking square root to both sides:p=\frac{0.25}{10}p=100.25​p = 0.025 atmSo, the equilibrium partial pressure of NO_2NO2​ is 0.025 atm.



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