Samuels CHEM Chemical Equilibrium Question Preview (ID: 31601)


Chemistry Chemical Equilibrium. TEACHERS: click here for quick copy question ID numbers.

Chemical equilibrium is represented by ______.
a) double arrows
b) single arrow
c) triple arrow
d) equal sign

Any factor that changes the rate of either forward or reverse reactions.
a) stress
b) solute
c) solvent
d) inhibitor

This states that if a stress is applied to a system at equilibrium, the system will react to offset the stress.
a) Le Chatelier’s Principle
b) Hund’s Rule
c) Conservation Principle
d) Equilibrium Principle

2 SO2 + O2 → 2 SO3 If more oxygen is added, which way will equilibrium shift?
a) right
b) left
c) no shift
d) both directions

2 SO2 + O2 → 2 SO3 If the pressure is decreased, which way will equilibrium shift?
a) left
b) right
c) no shift
d) both directions

2 H2 + O2 → 2 H2O If more H2O is added, which way will equilibrium shift?
a) left
b) right
c) no shift
d) both directions

2 H2 + O2 → 2 H2O If a catalyst is added, which way will equilibrium shift?
a) no shift
b) left
c) right
d) both directions

In an exothermic reaction, will heat be found where?
a) product side
b) reactant side
c) no heat used
d) both sides

N2 + 2 O2 + heat → 2 NO2 If the temperature decreases, which way will equilibrium shift?
a) left
b) right
c) no shift
d) both directions

Heating sugar leading to char is an example of which of the following?
a) irreversible reaction
b) reversible reaction
c) equilibrium
d) stress

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