Topical Questions These questions are keyed to the major topics in the chapter. Usually...

Topical Questions

These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.

At 503 K the equilibrium constant K_c for the dissociation of N₂O₄,

has the value 40.0.

(a) Calculate the fraction of N₂O₄ left undissociated when 1.00 mol of this gas is heated to 503 K in a 10.0-L sealed container.

(b) If the volume is now reduced to 2.0 L, what will be the new fraction of N₂O₄ that is undissociated?