The entropy versus temperature plot for phases $\alpha$ and $\beta$ at 1 bar pressure is given.
$S_T

Question

The entropy versus temperature plot for phases $\alpha$ and $\beta$ at 1 bar pressure is given.
$S_T$ and $S_0$ are entropies of the phases at temperatures $T$ and 0 K , respectively.\ The transition temperature for $\alpha$ to $\beta$ phase change is 600 K and $C_{p, \beta}-C_{p, \alpha}=1 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}$. Assume ( $C_{p, \beta}-C_{p, \alpha}$ ) is independent of temperature in the range of 200 to $700 \mathrm{~K} . C_{p, \alpha}$ and $C_{p, \beta}$ are heat capacities of $\alpha$ and $\beta$ phases, respectively.

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