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swater different from most other substances? escription of the physical characteristics in

swater different from most other substances? escription of the physical characteristics in

Inquiry into Physics
Inquiry into Physics
8th Edition
ISBN:9781337515863
Author:Ostdiek
Publisher:Ostdiek
Chapter5: Temperature And Heat
Section: Chapter Questions
Problem 36Q
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do the last question Q 9 thanks

6.4 Questions 1. (a) Describe each part of the graph in Figure 9 in terms of the states of matter. (b) What type of graph is this, a heating graph or a cooling graph? How can you tell? K/U™I Temperature °C Thermal energy released Figure 9 2. (a) Use Table 2 to graph a heating curve. (b) Label the appropriate parts of the graph with the following: solid, liquid, gas, melting, evaporation. (c) Determine the melting point and boiling point of the substance. ™ Table 2 Data Collected during the Heating of a Substance Time (min) 1.0 1.5 2.0 43 49 55 0.5 Temperature (°C) 37 2.5 3.0 55 55 3. Describe what would happen if you were to heat liquid water to a temperature of 110 °C. / 4. Explain the terms "latent heat of fusion" and "latent heat of vaporization." IK/U 5. To prevent fruit on trees from freezing and becoming inedible, fruit farmers in Ontario often spray their crops with water if they know the temperatures are going to drop below zero. Use your knowledge of latent heat to explain why this will help prevent the fruit from freezing. Ku 6. Calculate the latent heat of fusion for 2.40 kg of gold as it changes from a molten liquid into a solid bar. ™ 7. How much thermal energy is needed to change 100 g of ice at -20 °C into steam at 110 °C? ™ 8. While forming a 1.50 kg aluminum statue, a metal smith heats the aluminum to 2700 °C, pours it into a mould, and then cools it to a room temperature of 23.0 °C. Calculate the thermal energy released by the aluminum during the process. ™ 9. What makes water different from most other substances? Include a description of the physical characteristics in your answer. IK/U 3.5 56 4.0 4.5 5.0 5.5 6.0 64 70 80 86 90 6.5 7.0 7.5 90 90 100
Transcribed Image Text:6.4 Questions 1. (a) Describe each part of the graph in Figure 9 in terms of the states of matter. (b) What type of graph is this, a heating graph or a cooling graph? How can you tell? K/U™I Temperature °C Thermal energy released Figure 9 2. (a) Use Table 2 to graph a heating curve. (b) Label the appropriate parts of the graph with the following: solid, liquid, gas, melting, evaporation. (c) Determine the melting point and boiling point of the substance. ™ Table 2 Data Collected during the Heating of a Substance Time (min) 1.0 1.5 2.0 43 49 55 0.5 Temperature (°C) 37 2.5 3.0 55 55 3. Describe what would happen if you were to heat liquid water to a temperature of 110 °C. / 4. Explain the terms "latent heat of fusion" and "latent heat of vaporization." IK/U 5. To prevent fruit on trees from freezing and becoming inedible, fruit farmers in Ontario often spray their crops with water if they know the temperatures are going to drop below zero. Use your knowledge of latent heat to explain why this will help prevent the fruit from freezing. Ku 6. Calculate the latent heat of fusion for 2.40 kg of gold as it changes from a molten liquid into a solid bar. ™ 7. How much thermal energy is needed to change 100 g of ice at -20 °C into steam at 110 °C? ™ 8. While forming a 1.50 kg aluminum statue, a metal smith heats the aluminum to 2700 °C, pours it into a mould, and then cools it to a room temperature of 23.0 °C. Calculate the thermal energy released by the aluminum during the process. ™ 9. What makes water different from most other substances? Include a description of the physical characteristics in your answer. IK/U 3.5 56 4.0 4.5 5.0 5.5 6.0 64 70 80 86 90 6.5 7.0 7.5 90 90 100
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