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 the enthalpy change fof.1gs63x vhz/c gwt) zr cond(q1 t urjr9av)ensation and sublimation phase changesuqatr 1vrj 9)(?
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 bonds and d(od(ms3i 1j ka4oii9 therefore, releases energy. Sublimation (solid to gas) requires breaking bonds a miad9s ioi3(k1(jo4dnd therefore absorbs energy.
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