常温下,1 mol化学键断裂成气态原子所需消耗的能量用E表示。结合表中信息判断下列说法不正确的是
共价键 |
H—H |
F—F |
H—F |
H—Cl |
H—I |
E(kJ·mol-1) |
436 |
157 |
568 |
432 |
298 |
A.432 kJ·mol-1>E(H—Br)>298 kJ·mol-1
B.表中最稳定的共价键是H—F键
C.H2(g)―→2H(g) ΔH=+436 kJ·mol-1
D.H2(g)+F2(g)="==2HF(g)" ΔH=-25 kJ·mol-1
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