1) Is the statement true or false, with respect to the specified reaction in eac
ID: 706729 • Letter: 1
Question
1) Is the statement true or false, with respect to the specified reaction in each case?
If a vessel, containing an equilbrium mixture of these gases, is pressurized by adding argon gas, then the equilibrium position will not shift.
If an equilbrium mixture of these gases is released into a vessel of larger volume, then the equilibrium position will shift to the right.
If KOH is dissolved in this solution, then the equilibrium position will shift to the left. (Note that Fe(OH)3 is insoluble.)
If oxygen gas is removed from an equilbrium mixture of these gases, then the equilibrium position will shift to the left.
If the temperature is increased, then the equilibrium constant for this reaction equation will decrease.
2) What is the equilibrium constant expression for the following reaction:
C5H5NH(aq) + H2O(l)?C5H5NH2+(aq)+OH?(aq)
Choose from the list below and enter the letters alphabetical order. (e.g. For an equilibrium constant of [OH-]-1eq[H2O]eq enter AH.)
2SO3(g) 2SO2(g) + O2(g)Explanation / Answer
Ans 1 :
According to the Le chatelier's Principle , whenever the reaction at equillibrium is subjected to a change in reaction conditions , the equillibrium shifts in the direction where the equillibrium can be re-estabilished.
So here :
False :When pressure is increased by adding argon , the equillibrium shifts in the direction of low pressure , i.e. left.
True :When the volume is increased , pressure decreases , so the equillibrium shifts in the direction having more number of gaseous product species , i.e. right.
True :when KOH is dissolved in the mixture , it uses up the iron ions and forms insoluble Fe(OH)3 , so the equillibrium shifts in left to replenish lost Fe3+ .
False :when oxygen gas is removed , the equillibrium shifts to right so that more amount of it can be formed.
True : As the temperature increases , the reaction goes left , so the equillibrium constant decreases.
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