4. A paramagnetic salt that obeys Curie's law is situated in a magnetic field $H$ at a temperature $T$. (a) Prove that the heat capacity for a fixed magnetic field $H$ is given by $C_H = \mu_0CV\frac{H^2}{T^2}$, where $C$ is the Curie's constant. (b) Find the expression for the entropy change in a constant $H$ cooling process. (20 points)
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Now, let's consider a constant H cooling process, where the magnetic field H remains constant while the temperature T decreases from T1 to T2. The entropy change in this process can be calculated using the formula: ΔS = ∫(dQ / T) where ΔS is the entropy Show more…
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