# An ice cube tray of negligible mass contains 0.315 kg of water at 17.7^\circ. How much heat must be removed to cool the water to 0.0^\circ and freeze it?

An ice cube tray of negligible mass contains 0.315 kg of water at ${17.7}^{\circ }$. How much heat must be removed to cool the water to ${0.0}^{\circ }$ and freeze it?

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