The Foundations of Chemistry

Both [N 2 O 4 ] and [NO 2 ] increasebecause of the large decrease in volume. However, the number of molesof N 2 O 4 increases, w ...

Plan We are given equilibrium partial pressures of all reactants and products. So we write the expres- sion for KPand substitute ...

For gas-phase reactions,we can calculate the amounts of substances present at equilib- rium using either KPor Kc. The results ar ...

Solving by the quadratic formula gives x5.49 10 ^3 and 3.06 10 ^2 (extraneous root) [SbCl 5 ](0.00669x) M(0.006690.005 ...

HETEROGENEOUS EQUILIBRIA Thus far, we have considered only equilibria involving species in a single phase, that is, homogeneous ...

EXAMPLE 17-15 Kcand KPfor Heterogeneous Equilibrium Write both Kcand KPfor the following reversible reactions. (a) 2SO 2 (g)O 2 ...

each other, the chemical reaction begins, heat is released or absorbed, and the concen- trations of the substances in the mixtur ...

Figure 17-4 displays the relationships between free energy and equilibrium. The left end of each curve represents the total free ...

value of Kand the more favorable is the formation of products. We think of some reac- tions as going to “completion.” These gene ...

This very small number indicates that at equilibrium almost no N 2 and O 2 are converted to NO at 25°C. For all practical purpos ...

17-13 Evaluation of Equilibrium Constants at Different Temperatures 743 Problem-Solving Tip:Use the Correct K The Kvalues that a ...

744 CHAPTER 17: Chemical Equilibrium Key Terms Activity (of a component of an ideal mixture) A dimension- less quantity whose ma ...

Exercises 745 has an equilibrium constant Kcnumerically equal to 1. State whether each of the following is true or false, and ex ...

746 CHAPTER 17: Chemical Equilibrium 0 27.For the reaction CO(g)H 2 O(g) 34 CO 2 (g)H 2 (g) the value of the equilibrium const ...

Exercises 747 0.25 M.Classify each of the following statements about this reaction mixture as true or false. (a) The reaction mi ...

748 CHAPTER 17: Chemical Equilibrium amount of B present at the new equilibrium will be (i) greater than, (ii) less than, or (ii ...

Exercises 749 N 2 O 4 (g) 34 2NO 2 (g) (a) Calculate the equilibrium concentrations of both gases when 3.50 grams of N 2 O 4 is ...

750 CHAPTER 17: Chemical Equilibrium 0 85.The equilibrium constant Kcof the reaction H 2 (g)Br 2 (g) 34 2HBr(g) is 1.6 105 at ...

Exercises 751 Calculate KPand Kcfor the reaction at 400°C and at 800°C. 0 95.Kc19.9 for the reaction Cl 2 (g)F 2 (g) 34 2ClF(g ...

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