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Social Science258)15.25 At 1000 K, K, 1.85 for the reactionS2(8) +O2(8) SO3(8)(a) What is the value of Kp for the reaction SO3(8)-tion 2 SO2(g) + O2(8) 2 SO3(g)? (c) What is thevalue of K for the reaction in part (b)?SO2(8) +O2(8)? (b) What is the value of Kp for the reac-
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258) 15.25 At 1000 K, K, 1.85 for the reaction S2(8) +O2(8) SO3(8) (a) What is the value of Kp for the reaction SO3(8)- tion 2 SO2(g) + O2(8) 2 SO3(g)? (c) What is the value of K for the reaction in part (b)? SO2(8) +O2(8)? (b) What is the value of Kp for the reac-
Expert Answer
A reversible chemical reaction can move in either forward or backward direction. The stage of a reversible reaction at which the rate of forward and backward reaction become equal to each other is called an equilibrium stage.
The equilibrium constant for a reaction is the ratio of equilibrium concentration of product and reactant. If the reaction is given in gaseous state, then the equilibrium pressure must be considered.
Part (a)
The Kp value is given for the formation of SO3 at 1000 K as 1.85. For the reaction of conversion of SO3 to SO2 must be backward reaction of the formation of SO3.
Hence the Kp must be inverse value:
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,0ло SO. SO2 → SO3 Kp,=1.85 2(g) 2(g) 3(g) SO26) + 50 д6) Кр, 3D? SOgo 2(3) Kp, Kp, 1.85 = 0.540
Part (b):
The given reaction is just double to the reaction of formation o...
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50до у SO, 2 SO23) SO, Kp, =1.85 2(g) 2(g) 3(g) + Oxe + 2 SO Kp, =? 2(g) 2(g) 3(g) Kp, =(Kp,) = (1.85)² = 3.42
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