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Question
The susceptibility of magnesium at 300K is 1.2 x 10-5. At what temperature will the susceptibility increase to 1.8 X 10-5?
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Solution
Given: `chi_1` = 1.2 x 10-5, T1 = 300 K,
`chi_2` = 1.8 x 10-5
To find: Required temperature (T2)
Formula: χT = constant
Calculation: From formula
`chi_1T_1 =chi_2T_2`
`:. T_2 = (chi_1T_1)/chi_2 = (1.2 xx 10^(-5) xx 300)/(1.8 xx 10^(-5))`
∴ T2 = 200 K
The required temperature is 200 K.
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