At 25° C a Sample of N₂O₄(g) Is Placed in an Empty

question 14

Short Answer

At 25° C a sample of N₂O₄(g) is placed in an empty cylinder. After equilibrium is reached, the total pressure is 1.5 atm, and 16% (by moles) of the original N₂O₄ has dissociated to NO₂(g). If the volume of the cylinder is increased until the total pressure is 1.0 atm, what percent (by moles) of the original N₂O₄(g) has dissociated at the new equilibrium position? (Hint: First calculate K_p.)

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