2SO2(g)+O2(g)⇄2SO3(g) Kp≈2×105 At a certain temperature, SO2(g) and O2(g) react to produce SO3(g) according to the chemical equation shown above. An evacuated rigid vessel is originally filled with SO2(g) and O2(g), each with a partial pressure of 1atm. Which of the following is closest to the partial pressure of O2(g) after the system has reached equilibrium, and why? a) 0atm; because Kp is very large, nearly all the SO2(g)and O2(g) are consumed before the system reaches equilibrium. b) 0.5atm; because Kp is very large, nearly all the SO2(g) is consumed before the system reaches equilibrium, but an excess amount of O2(g) remains at equilibrium. c) 1atm; because Kp is very large, the system is already near equilibrium, and there will be very little change to the partial pressure of O2(g). d) 1.5atm; because Kp is very large, the decomposition of any SO3(g) that forms increases the amount of O2(g) at equilibrium.
2SO2(g)+O2(g)⇄2SO3(g)
Kp≈2×105
At a certain temperature, SO2(g) and O2(g) react to produce SO3(g) according to the chemical equation shown above. An evacuated rigid vessel is originally filled with SO2(g) and O2(g), each with a partial pressure of 1atm. Which of the following is closest to the partial pressure of O2(g) after the system has reached equilibrium, and why?
a) 0atm; because Kp is very large, nearly all the SO2(g)and O2(g) are consumed before the system reaches equilibrium.
b) 0.5atm; because Kp is very large, nearly all the SO2(g) is consumed before the system reaches equilibrium, but an excess amount of O2(g) remains at equilibrium.
c) 1atm; because Kp is very large, the system is already near equilibrium, and there will be very little change to the partial pressure of O2(g).
d) 1.5atm; because Kp is very large, the decomposition of any SO3(g) that forms increases the amount of O2(g) at equilibrium.
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