試題詳解

17. Given the equation S(s) + O₂(g) → SO₂(g), △H = -296 kIJ, which of the following statements is(are) true? I: The reaction is exothermic； Il: When 0.500 mol of sulfur is reacted, 148 kJ of energy is released. III: When 32.0 g of sulfur is burned, 2.96 x 10⁵ J of energy is released.
(A) I and Ill are true
(B) only II is true
(C) all are true
(D) I and II are true
(E) none is true.