The reaction 2SO₃(g) ⇌2SO₂(g) + O₂(g) is endothermic. If the temperature is increased,

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According to Le Chatelier's principle, when a system at equilibrium is subjected to a stress, it will shift in a direction that counteracts the stress. In this case, increasing the temperature is a stress as the reaction is endothermic. To counteract this stress, the equilibrium will shift towards the side of the reaction that absorbs heat, which is the left-hand side. Therefore, more SO₃ will be produced, which means that the concentration of products will decrease, while the concentration of reactants will increase. As a result, the value of K_c will increase.

The Reaction 2SO3(g) ⇌2SO2(g) + O2(g) Is Endothermic

The Reaction 2SO₃(g) ⇌2SO₂(g) + O₂(g) Is Endothermic