In a balanced chemical equation, if there is no net change in the total number o
ID: 988605 • Letter: I
Question
In a balanced chemical equation, if there is no net change in the total number of moles of gas from the reactant side to the product side, then Consider these reactions: If both solids are placed in water in a quantity sufficient to form contain the highest [Ag^+] at equilibrium? Consider the reaction Consider the equilibrium system is added, the equilibrium will ; if CO is removed the equilibrium will a. shift to (he left; shift to the left b. shift to the right, shift to the right c. shift lo the right; shift lo the left d. be unchanged; shift to the left e. be unchanged; shift to the right For an exothermic reaction, an increase in temperature a. always means an increase in K if the value of KExplanation / Answer
18. Since Kp = Kc (RT)n and n = 0
b. Kp = Kc
19.
For first reaction: x2 = 1.8 x 10-10 ; x = 1.34 x 10-5
[Ag+] = 1.34 x 10-5
For second reaction: (2x)2.x = 4x3 = 9 x 10-12 ; x = 1.3 x 10-4
[Ag+] = 2x = 2.6 x 10-4
c) Second since there are two silver ions per formula unit
20. As governed by Le Chatelier's principle:
c) shift to the left, higher pressure favors fewer moles of gas
21. As governed by Le Chatelier's principle:
b) shift to the right, shift to the right
22. For an exothermic reaction, at higher temperatures reactants are favored and Kc value decreases
e) Both b and d
23. Due to activation energy barrier, reactants are favored at small Kc value
b) greater than; the value of Kc favors reactants