lab 4.docx - PRE-LAB QUESTIONS u2022 When 3.0 kg of water...

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PRE-LAB QUESTIONSWhen 3.0 kg of water is warmed from 10 °C to 80 °C, how much heat energy is needed? 877800 JoulesA calorimeter contains 100 g of water at 39.8 ºC. A 8.23 g object at 50 ºC is placed inside the calorimeter. When equilibrium has been reached, the new temperature of the water and metal object is 40 ºC. What type of metal is the object made from? 1.015 J/gC EXPERIMENT 1: DETERMINATION OF SPECIFIC HEAT OF A METALData SheetTable 2: MassMass (g)Water50gUnknown MetalStrip17.8gTable 3: Specific Heat DataTime (minutes)Temperature (°C) Trial 1Trial 2Trial 3Initial2727275 minutes2929296 minutes2929297 minutes292929
8 minutes2929299 minutes29292910 minutes292929Average Specific Heat Capacity of the Unknown Metal: 0.334Post-Lab QuestionsWhy is ΔTmetal < 0?

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