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.

Consider the equilibrium

At 2300 K the equilibrium constant K_c = 1.7 × 10^-3. Suppose that 0.015 mol NO(g), 0.25 mol N₂(g), and 0.25 mol O₂(g) are placed into a 10.0-L flask, sealed, and heated to 2300 K.

(a) Is the system at equilibrium?

(b) If not, in which direction must the reaction proceed to reach equilibrium?

(c) Calculate the equilibrium concentrations of all three substances.