Chapter 15 Question and answers
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Hemoglobin carries ________ in the blood. - correct answer ✔oxygen
Define dynamic equilibrium. - correct answer ✔the rate of the forward
reaction equals the rate of the reverse reaction
Which of the following statements is FALSE? - correct answer ✔K >> 1
implies that the reaction is very fast at producing products.
Give the direction of the reaction, if K >> 1. - correct answer ✔The forward
reaction is favored.
Give the direction of the reaction, if K << 1. - correct answer ✔The reverse
reaction is favored.
Give the direction of the reaction, if K ≈ 1. - correct answer ✔Neither
direction is favored.
Express the equilibrium constant for the following reaction.
CH4(g) + 2 O2(g) ⇔ CO2(g) + 2 H2O(g) - correct answer ✔K = [CO2]
[H2O]^2
[CH4][O2]^2
Express the equilibrium constant for the following reaction.
, Pb(NO3)2(aq) + 2 NaI(aq) ⇌ PbI2(s) + 2 NaNO3(aq) - correct answer ✔K =
[NaNO3]^2
[Pb(NO3)2][NaI]^2
Which of the following statements is TRUE? - correct answer ✔Reaction
quotient is the concentration of the products raised to the stoichiometric
coefficients divided by the concentration of the reactants raised to their
stoichiometric coefficients, measured at any point in the reaction.
Define Le Chatelier's Principle. - correct answer ✔When a chemical system
at equilibrium is disturbed, the system shifts in a direction that minimizes the
disturbance.
Consider the following reaction at equilibrium. What will happen if FeS2 is
added to the reaction?
4 FeS2(s) + 11 O2(g) ⇌ 2 Fe2O3(s) + 8 SO2(g) - correct answer ✔No
change in equilibrium is observed.
Consider the following reaction at equilibrium. What will happen if O2 is added
to the reaction?
4 FeS2(s) + 11 O2(g) ⇌ 2 Fe2O3(s) + 8 SO2(g) - correct answer ✔The
equilibrium will change in the direction of the products.
Consider the following reaction at equilibrium. What will happen if Fe2O3 is
added to the reaction?
verified to pass
Hemoglobin carries ________ in the blood. - correct answer ✔oxygen
Define dynamic equilibrium. - correct answer ✔the rate of the forward
reaction equals the rate of the reverse reaction
Which of the following statements is FALSE? - correct answer ✔K >> 1
implies that the reaction is very fast at producing products.
Give the direction of the reaction, if K >> 1. - correct answer ✔The forward
reaction is favored.
Give the direction of the reaction, if K << 1. - correct answer ✔The reverse
reaction is favored.
Give the direction of the reaction, if K ≈ 1. - correct answer ✔Neither
direction is favored.
Express the equilibrium constant for the following reaction.
CH4(g) + 2 O2(g) ⇔ CO2(g) + 2 H2O(g) - correct answer ✔K = [CO2]
[H2O]^2
[CH4][O2]^2
Express the equilibrium constant for the following reaction.
, Pb(NO3)2(aq) + 2 NaI(aq) ⇌ PbI2(s) + 2 NaNO3(aq) - correct answer ✔K =
[NaNO3]^2
[Pb(NO3)2][NaI]^2
Which of the following statements is TRUE? - correct answer ✔Reaction
quotient is the concentration of the products raised to the stoichiometric
coefficients divided by the concentration of the reactants raised to their
stoichiometric coefficients, measured at any point in the reaction.
Define Le Chatelier's Principle. - correct answer ✔When a chemical system
at equilibrium is disturbed, the system shifts in a direction that minimizes the
disturbance.
Consider the following reaction at equilibrium. What will happen if FeS2 is
added to the reaction?
4 FeS2(s) + 11 O2(g) ⇌ 2 Fe2O3(s) + 8 SO2(g) - correct answer ✔No
change in equilibrium is observed.
Consider the following reaction at equilibrium. What will happen if O2 is added
to the reaction?
4 FeS2(s) + 11 O2(g) ⇌ 2 Fe2O3(s) + 8 SO2(g) - correct answer ✔The
equilibrium will change in the direction of the products.
Consider the following reaction at equilibrium. What will happen if Fe2O3 is
added to the reaction?
