100%(1)1 out of 1 people found this document helpful
This preview shows page 1 - 3 out of 3 pages.
PRE-LABQUESTIONS1.When 3.0 kg of water is warmed from 10 °C to 80 °C, how much heat energy is needed?a.q = 879060 J of energy2.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?a.Magnesium EXPERIMENT1: DETERMINATIONOFSPECIFICHEATOFAMETALData SheetTable 2: MassMass (g)Water50 gUnknown MetalStrip9.6 gTable 3: Specific Heat DataTime (minutes)Temperature (°C) Trial 1Trial 2Trial 3Initial4040395 minutes4142416 minutes434342Enthalpy and Specific Heat
7 minutes4445448 minutes4545459 minutes46464510 minutes474747Average Specific Heat Capacity of theUnknown Metal: 41.71Post-Lab Questions1.Why is ΔTmetal < 0? a.When metal looses energy, final temperature of metal i.e. T final is less than T