Lab09 Worksheet.docx - Enthalpy and Specific Heat PRE-LAB...

This preview shows page 1 - 4 out of 6 pages.

PRE-LAB QUESTIONS 1.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 METAL Data Sheet Table 2: Mass Mass (g) Water 50.3 g Unknown Metal Strip 11.1 g Table 3: Specific Heat Data Time (minutes) Temperature (°C) Trial 1 Trial 2 Trial 3 Initial 21.06 C 5 minutes 21. 4 C 21. 3 C 21. 1 C 6 minutes 21. 5 C 21. 5 C 21. 6 C 7 minutes 22. 7 C 22. 7 C 22. 7 C 8 minutes 23. 0 C 22. 9 C 23. 0 C 9 minutes 23. 2 C 23. 3 C 23. 3 C 10 minutes 23. 0 C 23. 0 C 22. 9 C Average Specific Heat Capacity of the Unknown Metal: 2735. 22 J Post-Lab Questions Enthalpy and Specific Heat
1.Why is ΔTmetal

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture