Chapter 15, Problem 36P

To determine

To find : The change in entropy.

Answer to Problem 36P

  $0.307{\text{ kcal k}}^{-1}$

Explanation of Solution

Given:

  $m=1kg$

  $S_w=1\text{ kcal}\cdot {\text{c}}^{-1}{\text{kg}}^{-1}$

Formula Used :

  $\Delta S=\left(\ln \frac{T_1}{T_1}\right)ms$

Calculation:

Substituting the values,

  $\Rightarrow \Delta S=1\times 1\ln \left(\frac{373}{273}\right)$

  $\Rightarrow \Delta S=\ln \left(1.36\right)$

  $\Rightarrow \Delta S=0.307\text{kcal}\cdot {\text{k}}^{-1}$