What will most likely happen when a component is removed from a reaction system at equilibrium? the system will be unaffected by stress. the addition of a catalyst will change the equilibrium. the equilibrium system will shift to remove more of what was removed. the equilibrium system will shift to replace some of what was removed.

The equilibrium system will shift to replace some of what was removed.

Explanation:

The Frenchman Henri Le Chatelier (1888) proposes the Le Chatelier's principle. It states that" if any of the conditions of a system in equilibrium is changed, the system will adjust itself in order to annul the effect of the change".

The principle is used to explain the results of applying any change of condition on a system in equilibrium. The stress due to change in any of the condition causes equilibrium to be displaced in the direction that counteracts the effect of the stress.

For example, if the concentration of a specie on the left hand side in a reaction increases, the equilibrium shifts to the right hand side. The equilibrium system will shift to replace some of what was removed and tends to balance it up.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

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