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Question 1 When does the addition of heat result in a rapid temperature rise? A When the material has a low latent heat of vaporization. When the material has a high latent heat of vaporization. When the material has a low specific heat. D When the material has a high specific heat. B C Question 2

Question 1 When does the addition of heat result in a rapid temperature rise? A When the material has a low latent heat of vaporization. When the material has a high latent heat of vaporization. When the material has a low specific heat. D When the material has a high specific heat. B C Question 2

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question 1 When does the addition of heat result in a rapid temperature rise? When the material has a low latent heat of vaporization. When the material has a high latent heat of vaporization. When the material has a low specific heat. When the material has a high specific heat. A B A Question 2 A student designed an experiment to investigate how emergency thermal blankets are used to keep a person warm in a cold environment. The student heated water on a hot plate until it reached a temperature of 100 0C. Equal amounts of the water were quickly transferred to identical containers. One of the containers was wrapped with a layer of aluminum foil and the other with clear plastic wrap. A thermometer was inserted into each container so that they touched only the water. After one hour of observation, the temperature of the water in the aluminum wrapped container was higher than the plastic wrapped container. с B Specific Heat Material J/kg/C Aluminum 900 Plastic 1410 D C D Based on the specific heat data, is the observation consistent with predicted results? Why or why not? Yes, it is consistent because the plastic wrapped container should have a lower temperature after one hour because it would transfer heat slower. No, it is not consistent because the aluminum wrapped container should have a lower temperature after one hour because it would transfer heat faster. No, it is not consistent because the plastic wrapped container should have a higher temperature after one hour because it would transfer heat faster. Yes, it is consistent because the aluminum wrapped container should have a higher temperature after one hour because it would transfer heat slower.
Transcribed Image Text:Question 1 When does the addition of heat result in a rapid temperature rise? When the material has a low latent heat of vaporization. When the material has a high latent heat of vaporization. When the material has a low specific heat. When the material has a high specific heat. A B A Question 2 A student designed an experiment to investigate how emergency thermal blankets are used to keep a person warm in a cold environment. The student heated water on a hot plate until it reached a temperature of 100 0C. Equal amounts of the water were quickly transferred to identical containers. One of the containers was wrapped with a layer of aluminum foil and the other with clear plastic wrap. A thermometer was inserted into each container so that they touched only the water. After one hour of observation, the temperature of the water in the aluminum wrapped container was higher than the plastic wrapped container. с B Specific Heat Material J/kg/C Aluminum 900 Plastic 1410 D C D Based on the specific heat data, is the observation consistent with predicted results? Why or why not? Yes, it is consistent because the plastic wrapped container should have a lower temperature after one hour because it would transfer heat slower. No, it is not consistent because the aluminum wrapped container should have a lower temperature after one hour because it would transfer heat faster. No, it is not consistent because the plastic wrapped container should have a higher temperature after one hour because it would transfer heat faster. Yes, it is consistent because the aluminum wrapped container should have a higher temperature after one hour because it would transfer heat slower.
C B D A B Question 3 In past times, when there was no electricity, on a cold winter night, people used to bring a hot object to bed. Characteristics of Two Objects C Object A Solid Object B Liquid in container Mass (Kg) 10 10 Temperature 100 100 Specific Heat (J/g °C) Based on the data, which hot object do you predict could keep you warmer throughout the night and why? 0.450 4.184 Either object A or B will release the same amount of heat because they are at the same temperature and will keep me warm all night. Question 4 Object A will cool off slowly because it is a solid with low specific heat and will keep me warm all night. Object B will take more time to release heat because it has absorbed more heat, so it will keep me warm all night. Table of Specific Heat Capacities Specific Heat Metal (J/g*°C) Iron 0.45 Copper 0.38 Silver 0.24 Chromium 0.46 Based on the table, which substance would be the BEST conductor of thermal energy and why? Object B will cool off too fast because it is a liquid with high specific heat, so it will make me feel cold in the middle of the night. chromium; because it is a transition metal with the highest specific heat value copper, because it is a transition metal and is used in plumbing for hot water lines iron; because it is a transition metal that is widely used in construction materials
Transcribed Image Text:C B D A B Question 3 In past times, when there was no electricity, on a cold winter night, people used to bring a hot object to bed. Characteristics of Two Objects C Object A Solid Object B Liquid in container Mass (Kg) 10 10 Temperature 100 100 Specific Heat (J/g °C) Based on the data, which hot object do you predict could keep you warmer throughout the night and why? 0.450 4.184 Either object A or B will release the same amount of heat because they are at the same temperature and will keep me warm all night. Question 4 Object A will cool off slowly because it is a solid with low specific heat and will keep me warm all night. Object B will take more time to release heat because it has absorbed more heat, so it will keep me warm all night. Table of Specific Heat Capacities Specific Heat Metal (J/g*°C) Iron 0.45 Copper 0.38 Silver 0.24 Chromium 0.46 Based on the table, which substance would be the BEST conductor of thermal energy and why? Object B will cool off too fast because it is a liquid with high specific heat, so it will make me feel cold in the middle of the night. chromium; because it is a transition metal with the highest specific heat value copper, because it is a transition metal and is used in plumbing for hot water lines iron; because it is a transition metal that is widely used in construction materials
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