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To whom it may concern, Hello, I need help with this question. The answer for Joules/Kelvin...

To whom it may concern,

Hello, I need help with this question. The answer for Joules/Kelvin of J/k = 3.894655709 is not correct.

Question:

"A 20.0 g ice cube at 0.0 degrees C is placed in a lake whose temperature is 13.0 degrees C. Calculate the change in entropy (in joules/Kelvin) of the system as the ice cube comes to thermal equilibrium with the lake. (c for water = 4186 J/kg-K)"

What formula should I use? Let me know when you can.

Thank you!

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