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PRE-LABQUESTIONS1.When 3.0 kg of water is warmed from 10 °C to 80 °C, how much heat energy is needed?2.A calorimeter contains 100 g of water at 39.8 ºC. A 8.23 g object at 50 ºC is placed insidethe 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?3.Enthalpy and Specific Heat
EXPERIMENT1: DETERMINATIONOFSPECIFICHEATOFAMETALData SheetTable 2: MassMass (g)Water49.9 gUnknown MetalStrip21.7 gTable 3: Specific Heat DataTime (minutes)Temperature (°C) Trial 1Trial 2Trial 3Initial2423225 minutes2525236 minutes2525237 minutes2525238 minutes2525239 minutes25252310 minutes252523Average Specific Heat Capacity of theUnknown Metal: 0.169J/gCPost-Lab Questions1.
Why is ΔTmetal < 0? Enthalpy and Specific Heat