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AjTruu2880
21.11.2019 •
Chemistry
Heat is transferred at a rate of 2 kw from a hot reservoir at 775 k to a cold reservoir at 300 k. calculate the rate at which the entropy of the two reservoirs changes. (round the final answer to six decimal places.)
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Ответ:
Explanation:
The given data is as follows.
Q = 2 kW,
= 775 K
The relation between entropy and heat energy is as follows.
Therefore, calculate the entropy at each temperature as follows.
=![\frac{2 kW}{775 K}](/tpl/images/0384/2371/0e5b7.png)
=
kW/K
Also,![S_{2} = \frac{Q}{T_{2}}](/tpl/images/0384/2371/b3d80.png)
=![\frac{2 kW}{300 K}](/tpl/images/0384/2371/f67e5.png)
=
kW/K
Hence, the change in entropy will be calculated as follows.
=
kW/K
=
kW/K
or, = 0.0041 kW/K
Thus, we can conclude that the rate at which the entropy of the two reservoirs changes is 0.0041 kW/K.
Ответ:
Thank you very much~ Ciel Phantomhive