
<p> Phase Change Gizmo</p><p>Name(s) ______Date______Hr. ____ </p><p>Directions 1. Logon to explorelearning.com 2. Open “Phase Changes” gizmo</p><p>Measuring Heat of Fusion: 3. Set up – water temp 10C , ice volume 20cc, altitude 0m, Heat 0 J/s 4. Run the simulation until temperature stabilizes</p><p>Questions Does all the ice melt ______</p><p>What is the final temp of the water ______</p><p>0 Determine the heat lost (Qwater) by the water in the beaker (assume cwater = 1 cal/g/ C)</p><p>Work: Qwater = ______</p><p>Where does the heat lost from the water go? ______</p><p>Determine the mass of ice melted from the change in volume of the water. Assume that the density of water at 00C is 1 g/cc.</p><p> mice = ______g</p><p>Determine the latent heat of fusion for water using your answers above.</p><p>Work: Lf = ______cal / g Directions 5. Reset the ice volume to 0cc and water temp to 00C 6. Use the add/remove heat energy and time to determine the latent heat of fusion of water a different way. 7. Explain what you did and show your calculations </p><p>______</p><p>______</p><p>______</p><p>______</p><p>Calculations: Lf = ______cal / g</p><p>Measuring the Heat of Vaporization: 8. Set up - water temp 1000C ice volume 0cc 9. Use add/ remove heat energy and time to determine the latent heat of vaporization of water. Explain what you did and show calculations leading to LV.</p><p>______</p><p>______</p><p>______</p><p>______</p><p>Calculations: LV = ______cal / g</p>
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