Yasmin fills an ice cube tray that is divided into 12 portions. In each portion, he...
Yasmin fills an ice cube tray that is divided into 12 portions. In each portion, he pours 28 g of 22oC water. How much heat will be released by the water as it changes to -18o C ice in the freezer?
Homework Answers
net heat to be released
H = heat released to change temp to 0 deg + change the state from water to solid + het released to change temp of ice from 0 to - 18
H = (12 m) C dT + (12m) Lf + (12m) Ci (dT)
H = 12* 0.028* ( 4186* 22 + 3.36* 10^5 + 2093 * 18)
H = 1.56* 10^5 J
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