The magnetic susceptibility of a paramagnetic salt is \(\chi\) at 300 K. Its susceptibility at 200 K will be
A. \(\chi\)
B. \(2.25\chi\)
C. \(\frac{2}{3}\chi\)
D. \(1.5\chi\)
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Answer: D. \(1.5\chi\)
Curie's law: \(\chi\propto\frac1T\Rightarrow\chi'=\chi\times\frac{300}{200}=1.5\chi\).
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· 23 Oct 2026
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