(FUVEST 2008) - Question Medium of Chemistry

Certain amounts of common water (H₂O) and deuterated water (D₂O) - water that contains deuterium atoms instead of hydrogen atoms - were mixed. There was an exchange of hydrogen and deuterium atoms, forming HDO molecules and establishing equilibrium (state I). The quantities, in moles, of each compound in state I are indicated by the bars on the left in the diagram. After some time, keeping the temperature constant, more deuterated water was added so that the amount of D₂O in the new equilibrium state (state II) was three times that before the addition. The quantities, in moles, of each compound involved in state II are indicated by the bars on the right in the diagram. The equilibrium constant, in states I and II, has the values respectively