固体碘在受热时发生升华现象，有关叙述正确的是(　　)_刷题宝

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固体碘在受热时发生升华现象，有关叙述正确的是(　　)

A：碘受热升华，破坏的是分子间作用力，未破坏I—I共价键，因此未发生吸热反应

B：碘受热升华，吸收热量，发生了吸热反应

C：碘升华，未破坏共价键，不供应热量也能发生

D：碘升华过程中，热能转变为化学能

上一题下一题 0.0难度选择题更新时间:2017-06-08 12:57:55

答案(点此获取答案解析）

A

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