A 110 g copper sphere is heated by a flame so that it reaches the temperature of the flame. After that the sphere is put in an insulating container filled with 250 g water at a temperature of 12 "C. After some time the sphere and the water have a temperature of 35 °C. What temperature had the flame? Give the final formula for the temperature, then plug in the values and give the temperature in "C. Neglect mass and heat capacity of the container. Use heat capacity of Cu: 0.383 kJ/(kg K), heat capacity water: 4.19 kJ/(kg K)

College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Introduction
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Problem 5.4
A 110 g copper sphere is heated by a flame so that it reaches the temperature of the flame. After
that the sphere is put in an insulating container filled with 250 g water at a temperature of 12 °C.
After some time the sphere and the water have a temperature of 35 °C.
What temperature had the flame? Give the final formula for the temperature, then plug in the
values and give the temperature in "C.
Neglect mass and heat capacity of the container. Use heat capacity of Cu: 0.383 kJ/(kg K), heat
capacity water: 4.19 kJ/(kg K)
Transcribed Image Text:A 110 g copper sphere is heated by a flame so that it reaches the temperature of the flame. After that the sphere is put in an insulating container filled with 250 g water at a temperature of 12 °C. After some time the sphere and the water have a temperature of 35 °C. What temperature had the flame? Give the final formula for the temperature, then plug in the values and give the temperature in "C. Neglect mass and heat capacity of the container. Use heat capacity of Cu: 0.383 kJ/(kg K), heat capacity water: 4.19 kJ/(kg K)
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how did you get from 0m1C1(T-T1)+m2C2(T-T2)=0 to T1=m2C2(T-T2)m1C1+T

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