試題詳解

27. At 298 K and 101 kPa, 2 . At the same temperature and pressure, 2 moles of SO₂ and 1 mole of O₂ are introduced into a closed container, and when equilibrium is reached, the amount of heat given off is Q₁. If I mole of SO₂, 0.5 mole of O₂ and 1 mole of SO₃ are introduced into a container of the same volume, and the amount of heat given off at equilibrium is Q₂, which of the following relationships is correct?
(A) Q₂ ＜Q₁＜197kJ
(B) Q₂＞Q₁＞ 197 kJ
(C) Q₂= Q₁= 197 kJ
(D) Q₁＜Q₂＜197 kJ
(E) Q₂= Q₁ ＜197 kJ