用CuKa1.542Å为光源，多晶衍射法测定其晶体物质的的衍射峰的2 角分别为31.69°，45.59°，56.45°，计算对应于该晶体的面间距。
正确答案:
dρ=λ/2sinθ
∴d1=0.1542/2sin15.85˚=0.0771×0.2731=0.021nm
d2=0.1542/2sin22.80˚=0.0771×0.3875=0.030nm
d3=0.1542/2sin28.23˚=0.0771×0.4730=0.036nm
∴d1=0.1542/2sin15.85˚=0.0771×0.2731=0.021nm
d2=0.1542/2sin22.80˚=0.0771×0.3875=0.030nm
d3=0.1542/2sin28.23˚=0.0771×0.4730=0.036nm
答案解析:有
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