A 0.70-kg piece of metal is heated to 80.0 °C and dropped into an ideal calorimeter containing 1.2 kg of water initially at 30.0 °C. What is the final equilibrium temperature of the piece of metal? The specific heat capacity of the piece of metal is 140 J/(kg · C°); and the specific heat of water is 4186 J/(kg ·C°). Hint: start with Qin = Qout %3D O a) 31.0 °C O b) 18.2 °C c) 21.5 d) 24.5 °C O e) 21.3 °C f) 32.6 °C

Principles of Physics: A Calculus-Based Text
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Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics
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A 0.70-kg piece of metal is heated to 80.0 °C and dropped into an ideal calorimeter
containing 1.2 kg of water initially at 30.0 °C. What is the final equilibrium
temperature of the piece of metal? The specific heat capacity of the piece of metal is
140 J/(kg · C°); and the specific heat of water is 4186 J/(kg ·C°). Hint: start with
Qin = Qout
O a) 31.0 °C
O b) 18.2 °C
c) 21.5
O d) 24.5 °C
e) 21.3 °C
f) 32.6 °C
Transcribed Image Text:A 0.70-kg piece of metal is heated to 80.0 °C and dropped into an ideal calorimeter containing 1.2 kg of water initially at 30.0 °C. What is the final equilibrium temperature of the piece of metal? The specific heat capacity of the piece of metal is 140 J/(kg · C°); and the specific heat of water is 4186 J/(kg ·C°). Hint: start with Qin = Qout O a) 31.0 °C O b) 18.2 °C c) 21.5 O d) 24.5 °C e) 21.3 °C f) 32.6 °C
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