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WorksheetsReversible Reactions and Equilibrium
Total questions: 15
Worksheet time: 8mins
Increasing temperature shifts equilibrium in the direction of
Exothermic reaction
Endothermic reaction
The forwarads reaction
The backwards reaction
if the reaction is endothermic delta H is
Negative
Positive
if the concentration of A is increased...
Equilibrium shifts to the right favouring the backwards reaction
Equilibrium shifts to the left favouring the forwards reaction
Equilibrium shifts to the right favouring the forwards reaction
Equilibrium shifts to the left favouring the backwards reaction
Concentration of ? is ? more A and B are formed/less C and D are formed
(a)
Decreasing what pushes equilibrium in the exothermic direction
Pressure
Concentration
Temperature
Volume
A reversible reaction can reach dynamic equilibrium
Under any circumstances
When the volume of the reactants and products is the same
In a sealed container
All of the above
Which of these is not a characteristic of a reversible reaction at dynamic equilibrium
The forward and reverse reaction occur at the same rate
The overall effect is nil as both reactions are happening at the same rate
The concentrations of reactants and products remain constant
If product escapes equilibrium reacts and shifts in a direction to ensure both sides produce the same volume of products
Increasing pressure pushes equilibrium in the direction of
Fewer moles
More moles
Negative delta H
Positive delta H
catalysts affect the position of equilibrium
True
False
Using a catalyst means
Equilibrium is reached sooner as the position of equilibrium changes
Equilibrium is reached at the same time but more products are produced
Equilibrium is reached later as the yield of products increases
Equilibrium is reached sooner but the position of equilibrium is unchanged
The Haber process is done at lower pressure because
High pressure is expensive
It increases yield of products
Less dangerous at high pressure
All of the above
Increasing pressure will mean
Equilibrium favours forwards reaction so more Nitrogen and Hydrogen produced
Equilibrium favours backwards reaction is more Nitrogen and Hydrogen produced
Equilibrium favours forwards reaction so more NH3
produced
Equilibrium favours backwards reaction so more Nitrogen and Hydrogen are produced
If the product is slightly more yellow has
Pressure increased
Pressure decreased
Temperature increased
Temperature decreased
Pressure increased and temperature increased
Why is a reaction at dynamic equilibrium called dynamic
The forwards reaction is still producing a product
The exothermic direction continues to produce a product forever and thus is dynamic
It’s irony because the reactants and products are being produced at the same rate therefore the reaction has reached a standstill
Both reactions are still occurring
Which of the following is true
In a reaction at equilibrium, there is the same amount of products as reactants
If the forward reaction in a reversible reaction is exothermic, then the backwards reaction is endothermic
If the equilibrium of a system lies towards the products, then the concentration of products is less than the concentration of reactants
In dynamic equilibrium the volume of reactants and products is equal
