Homework Answers
Kc is defined as: [product]/[reactant]
So, if Kc << 1, there are mostly reactant and reaction is
said to favour reactant.
So, if Kc >> 1, there are mostly product and reaction is said
to favour product.
Answer: B
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. 5. A reaction with an equilibrium constant Kc = 1.5 x 10-25 would consist of...
B3438 QUESTION 24 What is the equilibrium constant (K) at 350 K for the following reaction?...
B3438 QUESTION 24 What is the equilibrium constant (K) at 350 K for the following reaction? (R= 8.314 J/K.mol, F = 96,500 C-moll) Sn2+ (aq) + Fe(s) Sn(s) + Fe2+(aq) E cell = 0.35 V O 7.1 x 10-11 1.2 x 1010 1.2 x 105 8.6 x 10- 2.3 1023 QUESTION 30 A chemist adds substance A and B to a reaction flask and allows equilibrium to establish A+B=CKc= 1.5 x 10-25 Which of the following describe the contents of...
Q(22) Kp=Kc when? A) The reaction is at equilibrium B) The reaction is exothermic C) The reaction is endothermic D)...
Q(22) Kp=Kc when? A) The reaction is at equilibrium B) The reaction is exothermic C) The reaction is endothermic D) all of the gasses present are at the same temperature E) the number of moles of gas on both sides of the balanced equation is the same. Q(23) HAH +A at the equilibrium (HA) = 1.65* 10-2 M and [H") = (A-) = 5.44*10-4 M at equilibrium. Kc = A) 1.7 X 10-1 C) 1.7 X 103 D) 1.7 X...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward reaction stops only the reverse reaction stops both the forward and reverse reactions stop the rate constants for the forward and reverse reactions are equal the rates of the forward and reverse reactions are equal 2. A chemical equilibrium may be established by starting a reaction with reactants only. d. any quantities of reactants and products. products only. e. all the above equal quantities...
1) 2) 3) 4) The equilibrium constant for the gas phase reaction 2803 (g) = 2802...
1)
2)
3)
4)
The equilibrium constant for the gas phase reaction 2803 (g) = 2802 (g) + O2 (g) is Keg = 7.1 x 102 at 999 K. At equilibrium,_ O only reactants are present O roughly equal amounts of products and reactants are present products predominate only products are present reactants predominate QUESTION 20 The rate law of a reaction is rate = k[X]-. The units of the rate constant are O mol L-15-2 OL mol-15-1 O mol2...
The equilibrium constant for the gas phase reaction 2S03 (g) 2SO2 (g) O2(g) is Keq 3.6 x 10-3 at 999 K.At equilibrium, A) products predominate B) reactants predominate C) roughly equal amounts of pro...
The equilibrium constant for the gas phase reaction 2S03 (g) 2SO2 (g) O2(g) is Keq 3.6 x 10-3 at 999 K.At equilibrium, A) products predominate B) reactants predominate C) roughly equal amounts of products and reactants are present D) only products are present E) only reactants are present
The equilibrium constant for the gas phase reaction 2S03 (g) 2SO2 (g) O2(g) is Keq 3.6 x 10-3 at 999 K.At equilibrium, A) products predominate B) reactants predominate C) roughly equal amounts...
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc,...
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc, which is a mathematical expression based on the chemical equation. For example, in the reaction aA+bB⇌cC+dD where a, b, c, and d are the stoichiometric coefficients, the equilibrium constant is Kc=[C]c[D]d[A]a[B]b where [A], [B], [C], and [D] are the equilibrium concentrations. If the reaction is not at equilibrium, the quantity can still be calculated, but it is called the reaction quotient, Qc, instead of...
The reaction below has an equilibrium constant of Kp = 2.26 x 104 at 298 K....
The reaction below has an equilibrium constant of Kp = 2.26 x 104 at 298 K. CO(g) + 2H2(g) = CH3 OH(9) Predict whether reactants or products will be favored at equilibrium in each reaction. Drag the appropriate items to their respective bins. Reset Help Kp = 150 Kp = 1.96 x 10-9 K, = 4.42 x 10 Reactants favored Products favored Submit Request Answer
A equilibrium constant of 1e24 means that: (Check all that apply, wrong answers will be deducted...
A equilibrium constant of 1e24 means that: (Check all that apply, wrong answers will be deducted from the score.) a. At equilibrium, the vast majority of the molecules present are the reactants. b. At equilibrium, the vast majority of the molecules present are the products. c. There are slightly more reactants than products in the solution at equilibrium. d. There are slightly more products than reactants in the solution at equilibrium. e. It is likely that the reaction will occur...
If the equilibrium constant, Kc for the hypothetical reaction A(g) ⇄ B(g) is 50 at a...
If the equilibrium constant, Kc for the hypothetical reaction A(g) ⇄ B(g) is 50 at a given temperature, and if [A] = 0.020 M and [B] = 0.50 M in a mixture at that temperature 1. is the reaction at equilibrium? a) yes b) no 2. which way will the reaction shift? a) no shift b) towards the products c) towards the reactants
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc,...
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc, which is a mathematical expression based on the chemical equation. For example, in the reaction aA+bB?cC+dD where a, b, c, and d are the stoichiometric coefficients, the equilibrium constant is Kc=[C]c[D]d[A]a[B]b where [A], [B], [C], and [D] are the equilibrium concentrations. If the reaction is not at equilibrium, the quantity can still be calculated, but it is called the reaction quotient, Qc, instead of...
B3438 QUESTION 24 What is the equilibrium constant (K) at 350 K for the following reaction? (R= 8.314 J/K.mol, F = 96,500 C-moll) Sn2+ (aq) + Fe(s) Sn(s) + Fe2+(aq) E cell = 0.35 V O 7.1 x 10-11 1.2 x 1010 1.2 x 105 8.6 x 10- 2.3 1023 QUESTION 30 A chemist adds substance A and B to a reaction flask and allows equilibrium to establish A+B=CKc= 1.5 x 10-25 Which of the following describe the contents of...
Q(22) Kp=Kc when? A) The reaction is at equilibrium B) The reaction is exothermic C) The reaction is endothermic D) all of the gasses present are at the same temperature E) the number of moles of gas on both sides of the balanced equation is the same. Q(23) HAH +A at the equilibrium (HA) = 1.65* 10-2 M and [H") = (A-) = 5.44*10-4 M at equilibrium. Kc = A) 1.7 X 10-1 C) 1.7 X 103 D) 1.7 X...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward reaction stops only the reverse reaction stops both the forward and reverse reactions stop the rate constants for the forward and reverse reactions are equal the rates of the forward and reverse reactions are equal 2. A chemical equilibrium may be established by starting a reaction with reactants only. d. any quantities of reactants and products. products only. e. all the above equal quantities...
1)
2)
3)
4)
The equilibrium constant for the gas phase reaction 2803 (g) = 2802 (g) + O2 (g) is Keg = 7.1 x 102 at 999 K. At equilibrium,_ O only reactants are present O roughly equal amounts of products and reactants are present products predominate only products are present reactants predominate QUESTION 20 The rate law of a reaction is rate = k[X]-. The units of the rate constant are O mol L-15-2 OL mol-15-1 O mol2...
The equilibrium constant for the gas phase reaction 2S03 (g) 2SO2 (g) O2(g) is Keq 3.6 x 10-3 at 999 K.At equilibrium, A) products predominate B) reactants predominate C) roughly equal amounts of products and reactants are present D) only products are present E) only reactants are present
The equilibrium constant for the gas phase reaction 2S03 (g) 2SO2 (g) O2(g) is Keq 3.6 x 10-3 at 999 K.At equilibrium, A) products predominate B) reactants predominate C) roughly equal amounts...
The reaction below has an equilibrium constant of Kp = 2.26 x 104 at 298 K. CO(g) + 2H2(g) = CH3 OH(9) Predict whether reactants or products will be favored at equilibrium in each reaction. Drag the appropriate items to their respective bins. Reset Help Kp = 150 Kp = 1.96 x 10-9 K, = 4.42 x 10 Reactants favored Products favored Submit Request Answer
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