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Equilibrium Multiple Choice study test

Sophia Smee 10 preguntas

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Preguntas del test (10)

  1. 1The graph below represents the reaction x + y. Which time is closest to when the equilibrium was first established? Imagen de la pregunta 1
    1. AA. 1
    2. BB. 2
    3. CC. 3
    4. DD. None of the above
  2. 2What does equilibrium mean?
    1. AThe rates of the forward and reverse reactions are not equal, but the products' concentrations are equal to those of the reactants.
    2. BThe rate of the reverse reaction is greater than that of the forward reaction.
    3. CThe concentration of the reactants is greater than that of the products.
    4. DThe rates of the forward and reverse reactions are equal but the concentrations of the products are not necessarily equal to those of the reactants.
  3. 3At saturation, there exists an equilibrium as shown by the generic reaction equation below. The equilibrium constant for silver bromide is Ksp = 5.4 * 10 ^-13 and that of lead iodide is Ksp = 4.41 * 10^-9. Based on this information, which is more soluble in water?
    1. AThe silver bromide is more soluble since the Ksp is larger
    2. BThe lead iodide is more soluble since the Ksp is larger
    3. CThe silver bromide is more soluble since the Ksp is smaller
    4. DThe lead iodide is more soluble since the Ksp is smaller
  4. 4What is the equilibrium constant rate expression for the following reaction?

    C(s) + O2(g) = CO2(g)
    1. AKc = [CO2] / [C][O2]
    2. BKc = [C][O2] / [CO2]
    3. CKc = [CO2] / [C]
    4. DKc = [CO2] / [O2]
  5. 5The Kc of a reaction is 4*10^-7. At equilibrium, the...
    1. Areactants are favored
    2. Bproducts are favored
    3. Creaction is spontaneous
    4. Dreaction is exothermic
  6. 6In an equilibrium reaction with a Kc of 1*10^8, the...
    1. Areactants are favored
    2. Bproducts are favored
    3. Creaction is spontaneous
    4. Dreaction is exothermic
  7. 7Calculate the Kc for the following hypothetical reaction, using the given equilibrium concentrations: [A]= 0.020 M, [B]= 0.030 M, and [C]= 7.74 M

    A(g) + 2B(g) --- C(g)
    1. A2.3*10^-6
    2. B3.5*10^-1
    3. C1.3*10^4
    4. D4.3*10^5
  8. 8Heat + CO(g) + H2O(l) --- CO2(g) + H2(g)

    If the temperature were decreased, in which direction would the equilibrium shift?
    1. ATo the right, products favored
    2. BTo the left, reactants favored
    3. CTo the right, reactants favored
    4. DTo the left, products favored
  9. 9Heat + CO(g) + H2O(l) --- CO2(g) + H2(g)

    If the concentration of hydrogen gas increased, in which direction would the equilibrium shift?
    1. ATo the right as raising the [H2] allows less molecular collision between hydrogen and carbon dioxide.
    2. BTo the right raising the [H2] causes more molecular collisions between hydrogen and carbon dioxide.
    3. CTo the left raising the [H2] allows less molecular collisions between hydrogen and carbon dioxide.
    4. DTo the left as raising the [H2] causes more molecular collisions between hydrogen and carbon dioxide.
  10. 10Heat + CO(g) + H2O(l) --- CO2(g) + H2(g)

    If the volume of the container in which this reaction occurs is INCREASED in which direction would the equilibrium shift?
    1. ATo the left because the pressure will increase favoring less moles of gas
    2. BTo the left because the pressure will decrease favoring less moles of gas
    3. CTo the right because the pressure will increase favoring more moles of gas
    4. DTo the right because the pressure will decrease favoring more moles of gas

Información

Descripción
10th grade Chemistry Test sobre Equilibrium Multiple Choice study test, creado por Sophia Smee el 02/06/2023.
Idioma
English
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chemistry10th grade
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