10 Questions
What is the key to understanding equilibrium?
Entropy and the second law of thermodynamics
What happens to the entropy of an isolated system as it approaches equilibrium?
It increases to a maximum
What characterizes a state of chemical equilibrium?
A balance between two opposing forces or processes
What happens to the rates of forward and reverse reactions in a reversible reaction as it approaches equilibrium?
The forward reaction rate decreases, while the reverse reaction rate increases
What is the result of keeping the components of a reversible reaction together in a sealed container?
The reaction reaches a state of equilibrium
What is the state of the reaction when the forward and reverse reactions are occurring at the same rate?
Dynamic equilibrium
What is true about the concentrations of reactants and products at equilibrium?
Their rates are equal, but their concentrations are not equal
What happens to the forward reaction rate as the concentration of HI increases?
It decreases
What is the initial reaction that occurs when equal molar concentrations of gaseous H2 and I2 are mixed and allowed to react in a closed vessel?
Forward reaction between H2 and I2
What is the condition required for the reaction to reach a state of chemical equilibrium?
The reactants are consumed at the same rate they are replenished
Test your understanding of chemical equilibrium, a state where forward and reverse reactions occur at the same rate, maintaining constant concentrations. Learn about dynamic equilibrium through a real-life chemical reaction example.
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