Review 1.B.2 Question Preview (ID: 45347)


Equilibrium And Le Chatelier's Principle. TEACHERS: click here for quick copy question ID numbers.

For the reaction... SO2 + O2 − SO3 If the concentration of SO2 is increased, the equilibrium of the reaction will shift ___________.
a) left
b) right
c) neither left nor right
d) left and right

For the reaction... SO2 + O2 − SO3 If the equilibrium shifts to the right, the concentration of O2 will ___________.
a) increase
b) decrease
c) stay the same
d) double

For the reaction... SO2 + O2 − SO3 If the concentration of O2 is decreased, the equilibrium of the reaction will shift ___________.
a) left
b) right
c) left and right
d) neither left nor right

For the reaction... heat + N2 + O2 − 2NO If the heat is added to the chemical system, the equilibrium will shift _______.
a) left
b) right
c) left and right
d) neither left nor right

In exothermic reactions heat is a
a) product
b) reactant
c) catalyst
d) light

In an endothermic reaction heat is a
a) reactant
b) product
c) catalyst
d) light

Increasing temperature of exothermic reactions will cause them to
a) shift left
b) shift right
c) stay the same
d) melt

Which of the following does not effect equilibrium?
a) time
b) pressure
c) temperature
d) concentration

For the reaction... H2 (g) + Cl2 (g) − 2HCl (g) + heat If the temperature is cooled, the _________ reaction will be favored.
a) forward
b) reverse
c) forward and reverse
d)

For the reaction... H2 (g) + Cl2 (g) − 2HCl (g) + heat If the pressure in the system is increased, the equilibrium will _______.
a) shift left
b) shift right
c) not shift
d)

For the reaction... N2 (g) + 3 H2 (g) − 2 NH3 (g) If the pressure in the system is increased, _______ reaction will be favored.
a) forward
b) reverse
c) neither
d)

Which of the following is NOT true at equilibrium?
a) The forward and reverse reactions proceed at the same rate.
b) The concentration of the reactants is equal to the concentration of the products.
c) The concentrations of reactants and products do not change.
d) The forward and reverse reactions continue to occur.

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