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PRE-LAB QUESTIONS1.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
EXPERIMENT 1: DETERMINATION OF SPECIFIC HEAT OF A METALData SheetTable 2: MassMass (g)Water48.3gUnknown MetalStrip2.0gTable 3: Specific Heat DataTime (minutes)Temperature (°C) Trial 1Trial 2Trial 3Initial21.422.022.55 minutes21.822.222.76 minutes21.722.322.67 minutes21.622.322.78 minutes21.722.322.89 minutes21.822.522.710 minutes21.922.422.6Average Specific Heat Capacity of theUnknown Metal: 0.259822.0 22.2 0.2 -77.8 -40.41744Post-Lab QuestionsEnthalpy and Specific Heat