A piece of metal with a mass of 1.8 kg, specific heat of 205 J/kg/°C, and initial tem- perature of 83°C is dropped into an insulated jar that contains liquid with a mass of 4 kg, specific heat of 1000 J/kg/°C, and initial tem- perature of 6°C. The piece of metal is removed after 2.6 s, at which time its temperature is 20°C. Find the temperature of the liquid after the metal is removed. Neglect any effects of heat transfer to the air or to the insulated jar.
A piece of metal with a mass of 1.8 kg, specific heat of 205 J/kg/°C, and initial tem- perature of 83°C is dropped into an insulated jar that contains liquid with a mass of 4 kg, specific heat of 1000 J/kg/°C, and initial tem- perature of 6°C. The piece of metal is removed after 2.6 s, at which time its temperature is 20°C. Find the temperature of the liquid after the metal is removed. Neglect any effects of heat transfer to the air or to the insulated jar.
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Transcribed Image Text:A piece of metal with a mass of 1.8 kg,
specific heat of 205 J/kg/°C, and initial tem-
perature of 83°C is dropped into an insulated
jar that contains liquid with a mass of 4 kg,
specific heat of 1000 J/kg/°C, and initial tem-
perature of 6°C. The piece of metal is removed
after 2.6 s, at which time its temperature is
20°C.
Find the temperature of the liquid after the
metal is removed. Neglect any effects of heat
transfer to the air or to the insulated jar.
Answer in units of °C.
Find the average rate at which heat is trans-
ferred while the piece of metal is in the liquid.
Answer in units of J/s.
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