A) \[0.0030\]
B) \[0.0075\]
C) \[0.0045~\]
D) \[0.015\]
Correct Answer: D
Solution :
: According to Curies law, the magnetic susceptibility (%) of a paramagnetic substance is inversely proportional to absolute temperature T i.e., \[\chi \propto \frac{1}{T}\] \[\therefore \] \[\frac{{{\chi }_{1}}}{{{\chi }_{2}}}=\frac{{{T}_{2}}}{{{T}_{1}}}\] or \[{{\chi }_{2}}={{\chi }_{1}}\frac{{{T}_{1}}}{{{T}_{2}}}\] Here \[{{\chi }_{1}}=0.0075\] \[{{T}_{1}}=-{{73}^{o}}C=(273-73)K=200K\] \[{{T}_{2}}=-{{173}^{o}}C=(273-173)K=100K\]\[\therefore \] \[\chi =(0.0075)\left( \frac{200K}{100K} \right)=0.015\]
You need to login to perform this action.
You will be redirected in
3 sec
