本题目来源于试卷: What Drives Chemical Reactions D.1 Measuring Enthalpy Changes，类别为 IB化学
[单选题]
Which row represents thkpp7 m9) 70ukz q r(gbt(3webqe enthalpy ch( r3a jyy+l 7bdeinr*3ange for condensation and sublimation phase 3l*r jeb7 ariy(+ndy 3changes?
A. Condensation is endothermic ;Sublimation is exothermic
B. Condensation is endothermic ;Sublimation is endothermic
C. Condensation is exothermic ;Sublimation is exothermic
D. Condensation is exothermic ;Sublimation is endothermic
参考答案: D
本题详细解析:
Condensation (gas to liquid) requires making bond:/qvbs4r0 4gjfyw ni+s and therefore, releases energy. Sublimation (sn ryq:sbg4/v 4wj f0+iolid to gas) requires breaking bonds and therefore absorbs energy.
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