First slide

Magnetic properties of matter

Question

The susceptibility of magnesium at 300 K is $1.8 \times 10^{- 5}$ . At what temperature will be the susceptibility decreases to $1.2 \times 10^{- 5}$

Moderate

A

400 K
B

200 K
C

250 K
D

450 K

Solution

$A s p e r C u r i e' s L a w, χ = C / T G i v e n : χ_{1} = 1.8 \times 10^{- 5}$
$χ_{2} = 1.2 \times 10^{- 5}$
$T_{1} = 300 K; T_{2} = ?$
$U \sin g, \frac{χ_{1}}{χ_{2}} = \frac{T_{2}}{T_{1}} \Rightarrow T_{2} = (\frac{χ_{1}}{χ_{2}}) T_{1}$
$\Rightarrow T_{2} = \frac{1.8 \times 10^{- 5}}{1.2 \times 10^{- 5}} .300 \Rightarrow T_{2} = \frac{18}{12} \times 300 \Rightarrow T_{2} = 450 K .$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App