1. To sterilize a 51.0 g glass baby bottle, we must raise its temperature from 21.0°C to 94.0°C. How much heat transfer (in J) is required?
2. How much heat transfer (in kilocalories) is required to thaw a 0.209 kg package of frozen vegetables originally at 0°C if their heat of fusion is the same as that of water?
3. An ice bag containing 0°C ice is much more effective in absorbing heat than one containing the same amount of 0°C water. How much heat (in J) is required to raise the temperature of 0.750 kg of water from 0°C to 32.0°C? How much heat (in J) is required to first melt 0.750 kg of 0°C ice and then raise its temperature?
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