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Part D A1.6 kg block of iron at 28 °C is rapidly heated by a torch such that 18 kJ is transferred to it. What temperature would the block of iron reach (assuming the complete transfer of heat and no loss to the surroundings)? If that same amount of heat (18 kJ ) was quickly transferred to a 880 g pellet of copper at 22 "C, what temperature would the copper reach before it begins losing heat to the surroundings? Use the equation for heat capacity and the following heat capacity values: mc,AT SPeja) = 0.450 J/(g. "C) Cula) = 0.385 J/(g. "C) Express the final temperatures of the iron and copper in "Cto two significant figures separated by a comma. > View Available Hintis)

Part D A1.6 kg block of iron at 28 °C is rapidly heated by a torch such that 18 kJ is transferred to it. What temperature would the block of iron reach (assuming the complete transfer of heat and no loss to the surroundings)? If that same amount of heat (18 kJ ) was quickly transferred to a 880 g pellet of copper at 22 "C, what temperature would the copper reach before it begins losing heat to the surroundings? Use the equation for heat capacity and the following heat capacity values: mc,AT SPeja) = 0.450 J/(g. "C) Cula) = 0.385 J/(g. "C) Express the final temperatures of the iron and copper in "Cto two significant figures separated by a comma. > View Available Hintis)

Living By Chemistry: First Edition Textbook
Living By Chemistry: First Edition Textbook
1st Edition
ISBN:9781559539418
Author:Angelica Stacy
Publisher:Angelica Stacy
ChapterU5: Fire: Energy , Thermodynamics, And Oxidation-reduction
Section: Chapter Questions
Problem SI6RE
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Part D A 1.6 kg block of iron at 28 °C is rapidly heated by a torch such that 18 kJ is transferred to it. What temperature would the block of iron reach (assuming the complete transfer of heat and no loss to the surroundings)? If that same amount of heat (18 kJ ) was quickly transferred to a 880 g pellet of copper at 22 "C, what temperature would the copper reach before it begins losing heat to the surroundings? Use the equation for heat capacity and the following heat capacity values: mc,AT SPefa) = 0.450 J/(g- "C) Cala) = 0.385 J/(g- "C) Express the final temperatures of the iron and copper in "Cto two significant figures separated by a comma. > View Available Hint(s)
Transcribed Image Text:Part D A 1.6 kg block of iron at 28 °C is rapidly heated by a torch such that 18 kJ is transferred to it. What temperature would the block of iron reach (assuming the complete transfer of heat and no loss to the surroundings)? If that same amount of heat (18 kJ ) was quickly transferred to a 880 g pellet of copper at 22 "C, what temperature would the copper reach before it begins losing heat to the surroundings? Use the equation for heat capacity and the following heat capacity values: mc,AT SPefa) = 0.450 J/(g- "C) Cala) = 0.385 J/(g- "C) Express the final temperatures of the iron and copper in "Cto two significant figures separated by a comma. > View Available Hint(s)
Based on specific heat measurements, Pierre Dulong and Alexis Petit proposed in 1818 that the specific heat of an element is related to its atomic weight (atomic mass). Thus, by measuring the specific heat of a new element, its atomic weight could be readily established. The specific heat and atomic mass for a series of elements are provided for reference. Atomic mass Specific heat [J/(g.°C)] Element (amu) Iron 55.85 0.449 Copper 63.55 0.385 Selenium 78.96 0.321 Tellurium 127.6 0.202 Lead 207.2 0.128
Transcribed Image Text:Based on specific heat measurements, Pierre Dulong and Alexis Petit proposed in 1818 that the specific heat of an element is related to its atomic weight (atomic mass). Thus, by measuring the specific heat of a new element, its atomic weight could be readily established. The specific heat and atomic mass for a series of elements are provided for reference. Atomic mass Specific heat [J/(g.°C)] Element (amu) Iron 55.85 0.449 Copper 63.55 0.385 Selenium 78.96 0.321 Tellurium 127.6 0.202 Lead 207.2 0.128
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