問題詳情
20. Energy is __________ when bonds are formed and is __________ when bonds are broken; therefore, bond dissociationenergies are always __________.
(A) released / consumed / exothermic
(B) released / consumed / endothermic
(C) consumed / released / exothermic
(D) consumed / released / endothermic
(E) consumed / released / isothermic
參考答案
答案：B
難度：適中0.666667
統計：A(1),B(4),C(0),D(1),E(0)