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If a goldfish swimming in a bowl of water at 20 degrees C transfers 120J of...

If a goldfish swimming in a bowl of water at 20 degrees C transfers 120J of heat to the water as a result of its metabolism over a period of time, what is the change in entropy of the water? Make sure you get the SIGN right!

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Answer #1

Entropy is the measure of total disorderness or randomness.

The relation between change in entropy with flow of heat at certain temperature is

= Change in entropy

Q= Heat flow which is positive.(heat flow into the reservoir is positive)

T= temperature in kelvin

Now we have

Now apply

So the change in entropy is 0.40JK-1.

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