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Interpretation: Effect of change in volume over gaseous system at equilibrium must be explained.
Concept introduction: When the rate at which forward and backward reaction occur become equal such that concentration of reactants and products remains to be constant, that state is described as equilibrium. It is indicated by double sided arrow
For an equilibrium reaction:
The expression for equilibrium constant is:
Where,
a, b, c and d are coefficients of reactants.
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Answer to Problem 3RQ
In a gaseous system at equilibrium, change in volume has 2 possible effects as listed below:
- If the volume is compressed or pressure of the system is escalated, equilibrium will shift in direction to oppose volume compression or lower the escalation of pressure.
- If the volume is expanded or pressure of the system is lowered, equilibrium will shift in direction to oppose volume expanded or escalate the pressure.
Explanation of Solution
In a gaseous system at equilibrium, change in volume has 2 possible effects as listed below:
- If the volume is compressed or pressure of the system is escalated, equilibrium will shift in direction to oppose volume compression or lower the escalation of pressure.
- If the volume is expanded or pressure of the system is lowered, equilibrium will shift in direction to oppose volume expanded or escalate the pressure.
Such as in following reaction:
The expression for equilibrium constant for above reaction is:
If the number of gaseous molecules is equal on both sides, volume change will not effect any alteration in equilibrium constant.
In a gaseous system at equilibrium, change in volume has 2 possible effects as listed below:
- If the volume is compressed or pressure of the system is escalated, equilibrium will shift in direction to oppose volume compression or lower the escalation of pressure.
- If the volume is expanded or pressure of the system is lowered, equilibrium will shift in direction to oppose volume expanded or escalate the pressure.
Chapter 17 Solutions
World of Chemistry
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