Homework Answers
Adding a catalyst wil increase a amount of products.
(False).
Because catalyst just increases the rate of reaction, it does not
alter the equiribrium concentration.
The concentration of reactants and products are constant. (True)
The rate of forward reaction equals the rate of reverse reaction. (True)
The value of equilibrium constant will change if the temperature
changes. (True)
Because Equilibrium constant depends on temperature.
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Label the following statements about equilibrium as true or false. Adding a catalyst will increase the...
Which of the following is a true statement about chemical equilibria in general? equilibrium [products] = [reactants].
Which of the following is a true statement about chemical equilibria in general? A. At equilibrium the total concentration of products equals the total concentration of reactants, that is, [products] = [reactants]. B. Equilibrium is the result of the cessation of all chemical change. C. There is only one set of equilibrium concentrations that equals the Kc value. D. At equilibrium, the rate constant of the forward reaction is equal to the rate constant for the reverse reaction. E. At...
Decide which of the following statements are True and which are False about equilibrium systems: For...
Decide which of the following statements are True and which are False about equilibrium systems: For the following reaction: CaCO3(s) = CaO(s) + CO2(g) the (CaCO3] appears in the denominator of the equilibrium expression. For the following reaction: H2(g) + F2(g) = 2HF(g) the values of K and Kp are not the same. The value of K at constant temperature depends on the amounts of reactants and products that are mixed together initially. A large value of K means the...
Select all of the correct statements about equilibrium from the choices below. At equilibrium the rates of forward and r...
Select all of the correct statements about equilibrium from the choices below. At equilibrium the rates of forward and reverse reactions are equal. At equilibrium the rate of change of product concentration is zero. At equilibrium the forward rate constant equals zero. As a reaction proceeds backwards toward equilibrium the reverse rate drops. As a reaction proceeds forward toward equilibrium the reactant concentrations drop. At equilibrium no more reactants are transformed into products.
QUESTION 5 Which of the following statements about a catalyst is true? Catalysts decrease the activation...
QUESTION 5 Which of the following statements about a catalyst is true? Catalysts decrease the activation energy of a reaction. Catalysts decrease the rate of the forward reaction. Catalysts cause a system at equilibrium to shift towards the products. Catalysts cause a system at equilibrium to shift towards the reactants. Catalysts decrease the rate of the reverse reaction.
QUESTION 5 Which of the following statements about a catalyst is true? O Catalysts cause a...
QUESTION 5 Which of the following statements about a catalyst is true? O Catalysts cause a system at equilibrium to shift towards the products. O Catalysts cause a system at equilibrium to shift towards the reactants. o Catalysts decrease the rate of the reverse reaction. O Catalysts decrease the rate of the forward reaction. o Catalysts decrease the activation energy of a reaction.
Which of the following statements are true in this equilibrium state? A. The concentrations of reactants...
Which of the following statements are true in this equilibrium state? A. The concentrations of reactants and prodcuts are still changing with time. B. The concentrations of reactants and products are equal. C. The rates of the forward and reverse reactions are equal. D. The rate of the reverse reaction is greater than that of the forward reaction. E. The rate of the forward reaction is greater than that of the reverse reaction.
QUESTION 5 Which of the following statements about a catalyst is true? O Catalysts increase the...
QUESTION 5 Which of the following statements about a catalyst is true? O Catalysts increase the rate of the reaction. Catalysts cause a system at equilibrium to shift towards the reactants. o Catalysts cause a system at equilibrium to shift towards the products. Catalysts increase the activation energy of a reaction. Catalysts decrease the rate of the reaction.
Select all of the correct statements about equilibrium from the choices below. At equilibrium the rates...
Select all of the correct statements about equilibrium from the choices below. At equilibrium the rates of forward and reverse reactions are equal. As a reaction proceeds backwards toward equilibrium the reactant concentrations rise. As a reaction proceeds backwards toward equilibrium the reverse rate drops. As a reaction proceeds forward toward equilibrium the product concentrations rise. At equilibrium concentrations of reactants and products stay constant. At equilibrium there are always equal amounts of reactants and products.
2. Label each of the following statement as True or False: Under chemical equilibrium, the concentration of the rea...
2. Label each of the following statement as True or False: Under chemical equilibrium, the concentration of the reactants is equal to the concentration of the products. a. b. Under chemical equilibrium, the rate of the forward reaction is equal to the rate of the reverse reaction. In Le Chatelier's Principle, the term "stress" refers to the death of a loved one, too much workload, and the deprivation of food and sleep. c. d. In Le Chatelier's Principle, the term...
Which of the following statements is true about chemical equilibrium? Select all that apply. At chemical...
Which of the following statements is true about chemical equilibrium? Select all that apply. At chemical equilibrium, the reactants have been completely consumed. At chemical equilibrium, both reactions stop completely. At chemical equilibrium, the concentrations of the species involved in the reaction stay constant (in the absence of an external perturbation). At chemical equilibrium the rate of the forward reaction is equal to the rate of the reverse reaction.
Decide which of the following statements are True and which are False about equilibrium systems: For the following reaction: CaCO3(s) = CaO(s) + CO2(g) the (CaCO3] appears in the denominator of the equilibrium expression. For the following reaction: H2(g) + F2(g) = 2HF(g) the values of K and Kp are not the same. The value of K at constant temperature depends on the amounts of reactants and products that are mixed together initially. A large value of K means the...
QUESTION 5 Which of the following statements about a catalyst is true? Catalysts decrease the activation energy of a reaction. Catalysts decrease the rate of the forward reaction. Catalysts cause a system at equilibrium to shift towards the products. Catalysts cause a system at equilibrium to shift towards the reactants. Catalysts decrease the rate of the reverse reaction.
QUESTION 5 Which of the following statements about a catalyst is true? O Catalysts cause a system at equilibrium to shift towards the products. O Catalysts cause a system at equilibrium to shift towards the reactants. o Catalysts decrease the rate of the reverse reaction. O Catalysts decrease the rate of the forward reaction. o Catalysts decrease the activation energy of a reaction.
QUESTION 5 Which of the following statements about a catalyst is true? O Catalysts increase the rate of the reaction. Catalysts cause a system at equilibrium to shift towards the reactants. o Catalysts cause a system at equilibrium to shift towards the products. Catalysts increase the activation energy of a reaction. Catalysts decrease the rate of the reaction.
Select all of the correct statements about equilibrium from the choices below. At equilibrium the rates of forward and reverse reactions are equal. As a reaction proceeds backwards toward equilibrium the reactant concentrations rise. As a reaction proceeds backwards toward equilibrium the reverse rate drops. As a reaction proceeds forward toward equilibrium the product concentrations rise. At equilibrium concentrations of reactants and products stay constant. At equilibrium there are always equal amounts of reactants and products.
2. Label each of the following statement as True or False: Under chemical equilibrium, the concentration of the reactants is equal to the concentration of the products. a. b. Under chemical equilibrium, the rate of the forward reaction is equal to the rate of the reverse reaction. In Le Chatelier's Principle, the term "stress" refers to the death of a loved one, too much workload, and the deprivation of food and sleep. c. d. In Le Chatelier's Principle, the term...
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