lab_23 - LAB 23 Latent Heat INTRODUCTION In this experiment...

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LAB# 23 Latent Heat INTRODUCTION: In this experiment you have two samples of water with different masses and temperatures. When you mix them, the hot water cools off and the cold water warms up. According to the model of heat we developed in class, heat flows from the sample at the higher temperature to the sample at lower temperature. The flow proceeds until both temperatures are equal. In this experiment, you will be observing how the amount of heat lost by the hot sample relates to the amount of heat gained by the cold sample. APPERATUS PART I: 1 large Styrofoam cups (16 oz), 1 large Styrofoam cup (16 oz) insulated with a hole in the bottom, 4 graduated cylinders (100ml), graduated cylinder (250ml), graduated cylinder (1000ml), 2 digital thermometers, pail of hot water, pail of room temperature water, and a hot water source, Excel spreadsheet application, and a PC computer. See figure 1 below. Figure 1 CUATION!! graduated cylinders made of glass are very fragile. handle with care. PART I: a) Two pails of water are in the lab, one with fresh tap water and one with hot water (about 60 C ). Fill three graduated cylinders (with yellow base) with 100 mL of cold water from the pail. b) Use a graduated cylinder (red base) to measure 100 mL of hot water. Pour the hot water into a Styrofoam cup. Now you have four very nearly equal measures of water.
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c) First, you will mix equal amounts of water at different temperatures. Examine the data
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lab_23 - LAB 23 Latent Heat INTRODUCTION In this experiment...

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