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- 1. Multiple ChoiceChanges in pressure will only affect substances that are in the __________ state.gaseousliquidsolidplasma
- 2. Multiple ChoiceWhat are the two factors to look for when determining if the reaction is at equilibrium?Forward reaction rate is faster than the reverse and concentrations are equalForward and reverse reaction rates are equal and concentration is constantForward and revers reaction rates are equal and concentration is equalForward reaction rate is faster than the reverse and concentration is equal
- 3. Multiple Choice
This symbol indicates that a reaction is ____________reversibleirreversible - 4. Multiple ChoiceWhen the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be inChemical EquilibriumChemical BalanceStoichiometryChemical Reaction
- 5. Multiple Choice
For the reaction...
SO2 + O2 ⇌ SO3
If the concentration of SO2 is increased, the equilibrium of the reaction will shift ___________.
left
right
left and right
neither left nor right
- 6. Multiple Choice
For the reaction...
N2 (g) + 3 H2(g) ⇌ 2 NH3 (g)
If the pressure in the system is increased, which substance(s) will increase in concentration?
N2
H2
N2 and H2
NH3
- 7. Multiple Choice
What is the effect of increasing the pressure on the following equilibrium: 2NO(g) + O2 (g) ⇌2NO2(g)?
The yield of NO2 increases
The yield of NO2 decreases
The reaction is slower
The concentration of O2 increases.
- 8. Multiple Choice2SO2(g)+O2(g)⇌2SO3(g)
Removing O2(g) willshift equilibrium rightshift equilibrium leftincrease pressurehave no change - 9. Multiple Choice
2SO2(g)+O2(g)⇌2SO3(g)
Adding SO3(g) will
shift equilibrium right
shift equilibrium left
increase K
have no change
- 10. Multiple ChoiceWhich of the following is NOT true at equilibrium?The forward and reverse reactions proceed at the same rate.The concentrations of reactants and products do not change.The concentration of the reactants is equal to the concentration of the products.The forward and reverse reactions continue to occur.
- 11. Multiple Choice
H2(g)+Cl2(g)⇌2HCl(g)
Removing Cl2(g) will
shift equilibrium right
shift equilibrium left
increase pressure
have no change
- 12. Multiple Choice
H2(g)+Cl2(g)⇌2HCl(g)
Increasing the pressure will
shift equilibrium right
shift equilibrium left
You cannot predict the effect
have no change
- 13. Multiple Choice
H2(g)+Cl2(g)⇌2HCl(g)
The forward reaction is exothermic. What will happen to the equilibrium if the temperature is increased?
equilibrium shifts right
equilibrium shifts left
You cannot predict the effect
no change
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