15. Given the equation S(s) + O2(g) → SO2(g), ∆H = −296 kJ, which of the following statements is(are) true? I: The reaction is exothermic; II: 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) all are true
(B) none is true
(C) I and II are true
(D) I and III are true
(E) only II is true
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統計: A(1), B(0), C(0), D(0), E(0) #3371100
統計: A(1), B(0), C(0), D(0), E(0) #3371100