Homework Answers
This is that problem of le chatlier principle which states that if a constraint (such as a change in pressure, temperature, or concentration of a reactant) is applied to a system in equilibrium, the equilibrium will shift so as to tend to counteract the effect of the constraint.
As the reaction is exothermic heat is released in the product side. When the temperature will be lowered, then the equilibrium will shift in direction where temperature will be more. So towards forward direction. The pressure of F2 will decrease and reaction will run to the right.
In the next case when temperature is raised reaction will move to the side where heat would not be released that is in backward direction
The pressure of HF will decrease and reaction will move in the right side
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