Increasing the temperature at which a chemical reaction occurs a. will lower the activation energy. What is the correct answer? b. causes more reactant collisions to take place in a given time c. increases disorder in the system, thus decreasing the reaction rate d. more than one correct response e. no correct response f. None Chemical equilibrium is reached in a system when. What is the correct answer? a. complete conversion of reactants to products has occurred b. reactant and product concentrations are equal c. reactants are being consumed at the same rate they are being produced d. more than one correct response e. no correct response f. None In writing an equilibrium constant expression, which of the following is incorrect?What is the correct answer? a. Concentrations are always expressed in molarities. b. Product concentrations are always placed in the numerator of the expression. c. Concentrations of pure solids and pure liquids are always placed in the denominator of the expression. d. More than one correct response. e. No correct response. f. None CO2 and H2 are allowed to react until equilibrium is established as follows: CO2(g) + H2 (g) = H20(g) + CO(g) , Which of the following changes will cause the equilibrium position to shift to the right? What is the correct answer? a) increase in the concentration of H2 b) decrease in the concentration of CO c) decrease in the concentration of CO2 d) more than one correct response e) no correct response According to Le Chatelier's principle, which of the following effects will occur if NH3 is removed from an equilibrium mixture governed by the equation: N2 (g) +3H2(g) = 2NH3(g) + heat. What is the correct answer? a) Concentration of N2 will increase. b) Heat will be generated. c) Concentration of H2 will decrease. d) More than one correct response. e) No correct response.
Increasing the temperature at which a
a. will lower the activation energy. What is the correct answer?
b. causes more reactant collisions to take place in a given time
c. increases disorder in the system, thus decreasing the reaction rate
d. more than one correct response
e. no correct response
f. None
Chemical equilibrium is reached in a system when. What is the correct answer?
a. complete conversion of reactants to products has occurred
b. reactant and product concentrations are equal
c. reactants are being consumed at the same rate they are being produced
d. more than one correct response
e. no correct response
f. None
In writing an equilibrium constant expression, which of the following is incorrect?What is the correct answer?
a. Concentrations are always expressed in molarities.
b. Product concentrations are always placed in the numerator of the expression.
c. Concentrations of pure solids and pure liquids are always placed in the denominator of the expression.
d. More than one correct response.
e. No correct response.
f. None
CO2 and H2 are allowed to react until equilibrium is established as follows: CO2(g) + H2 (g) = H20(g) + CO(g) , Which of the following changes will cause the equilibrium position to shift to the right? What is the correct answer?
a) increase in the concentration of H2
b) decrease in the concentration of CO
c) decrease in the concentration of CO2
d) more than one correct response
e) no correct response
According to Le Chatelier's principle, which of the following effects will occur if NH3 is removed from an equilibrium mixture governed by the equation: N2 (g) +3H2(g) = 2NH3(g) + heat. What is the correct answer?
a) Concentration of N2 will increase.
b) Heat will be generated.
c) Concentration of H2 will decrease.
d) More than one correct response.
e) No correct response.
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