Problem: A container initially contains 2.0 atm SO3, 1.5 atm SO2 (g) and 1.0 atm O2 (g) and is allowed to reach equilibrium. What is the equilibrium partial pressure of SO3 (g) if Kp = 3.4 x 10-1 at 1000 K?2 SO3 (g) ⇌ 2 SO2 (g) + O2 (g)A) 2, 0 + 2xB) 2xC) 2, 0 -2xD) 1.5-xE) 0

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We are asked to get the equilibrium partial pressure of SO3 given that initially, we have 2 atm SO3, 1.5 atm SOand 1 atm Oand the reaction is :


2 SO3 (g)  2 SO2 (g) + O2 (g)

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Problem Details

A container initially contains 2.0 atm SO3, 1.5 atm SO2 (g) and 1.0 atm O2 (g) and is allowed to reach equilibrium. What is the equilibrium partial pressure of SO3 (g) if Kp = 3.4 x 10-1 at 1000 K?

2 SO3 (g) ⇌ 2 SO2 (g) + O2 (g)

A) 2, 0 + 2x

B) 2x

C) 2, 0 -2x

D) 1.5-x

E) 0