A 3.2 kg block of copper at a temperature of 82°C is dropped into a bucket...
A 3.2 kg block of copper at a temperature of 82°C is dropped into a bucket containing a mixture of ice and water whose total mass is 1.2 kg. When thermal equilibrium is reached the temperature of the water is 8°C. How much ice was in the bucket before the copper block was placed in it? (Neglect the heat capacity of the bucket.)
answer in kg
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A 3.2 kg block of copper at a temperature of 82°C is dropped
into a bucket...
A 25.0-g block of ice at -15.00°C is dropped into a calorimeter (of negligible heat capacity)...
A 25.0-g block of ice at -15.00°C is dropped into a calorimeter (of negligible heat capacity) containing water at 15.00°C. When equilibrium is reached, the final temperature is 8.00°C. How much water did the calorimeter contain initially? The specific heat of ice is 2090 J/kg ∙ K, that of water is 4186 J/kg ∙ K, and the latent heat of fusion of water is 33.5 × 104 J/kg.
Problem3 A block of copper has a mass of 100 kg and an initial temperature of...
Problem3 A block of copper has a mass of 100 kg and an initial temperature of 900 K. Copper can be modeled as an incompressible substance with a specific heat capacity of 0.4 kJ/kg-K. a) The copper block is dropped into a large lake at 300 K and allowed to come to thermal equilibrium. How much entropy is generated (kJ/K)?
A Styrofoam bucket of negligible mass contains 1.55 kg of water and 0.435 kg of ice....
A Styrofoam bucket of negligible mass contains 1.55 kg of water and 0.435 kg of ice. More ice, from a refrigerator at -15.0 ∘C, is added to the mixture in the bucket, and when thermal equilibrium has been reached, the total mass of ice in the bucket is 0.772 kg . Assuming no heat exchange with the surroundings, what mass of ice was added?
A 0.320 kg iron horseshoe that is initially at 400°C is dropped into a bucket containing...
A 0.320 kg iron horseshoe that is initially at 400°C is dropped into a bucket containing 18.0 kg of water at 21.8°C. What is the final equilibrium temperature (in °C)? Neglect any heat transfer to or from the surroundings. Do not enter units.
A 34 kg iron block and a 48-kg copper block, both initially at 80°C, are dropped...
A 34 kg iron block and a 48-kg copper block, both initially at 80°C, are dropped into a large lake at 15°C. Thermal equilibrium is established after a while as a result of heat transfer between the blocks and the lake water. Determine the total entropy change for this process. The specific heat of Iron at room temperature is cp0.45 kJ/kg.K. The specific heat of copper at 27°C is ep 0,386 kJ/kg.K. Iron Lake 15°C Copper The total entropy change...
A 309 g block of copper at a temperature of 73.0°C is dropped into 579 g...
A 309 g block of copper at a temperature of 73.0°C is dropped into 579 g of water at 26.9°C. The water is contained in a 118 g glass container. Assume the glass has the same initial temperature as the water (26.9°C). What is the final temperature of the mixture? The specific heat of copper is 387 J/kg˚C, the specific heat of water is 4186 J/kg˚C, and the specific heat of glass is 837 J/kg˚C.
A copper block is removed from a 300°C oven and dropped into 1.00 kg of water...
A copper block is removed from a 300°C oven and dropped into 1.00 kg of water at 20.0°C, which is located in an aluminum container of a mass of 0.250 kg. The system quickly reaches 25.5°, and then remains at that temperature. a) What is the mass of the copper block? b) How much energy did the copper block lose? c) How much energy did the water gain? d) As the temperature of water rises, the temperature of the copper...
A copper block is removed from a 400⁰C oven and dropped into 1.00 kg of water...
A copper block is removed from a 400⁰C oven and dropped into 1.00 kg of water at 30.0⁰C, which is located in an aluminum container of a mass of 0.350 kg. The system quickly reaches 25.5⁰, and then remains at that temperature. a) What is the mass of the copper block? b) How much energy did the copper block lose? c) How much energy did the water gain? d) As the temperature of water rises, the temperature of the copper...
4. A 0.500 kg piece of copper at an initial temperature of 20.0°C is placed in...
4. A 0.500 kg piece of copper at an initial temperature of 20.0°C is placed in a water bath and the temperature of the metal is raised to 100.0°C. Note: The specific heat capacity of copper is 385J/kg K and the latent heat of fusion is 2.07x105J/kg. a. How much heat was required to raise the temperature of the copper? e. An identical piece of heated copper (at 100.0°C) is placed in a calorimeter containing 0.500 kg of an unknown...
4. A 0.500 kg piece of copper at an initial temperature of 20.0°C is placed in...
4. A 0.500 kg piece of copper at an initial temperature of 20.0°C is placed in a water bath and the temperature of the metal is raised to 100.0°C. Note: The specific heat capacity of copper is 385J/kg K and the latent heat of fusion is 2.07x1057/kg. a. How much heat was required to raise the temperature of the copper? b. How much more heat would be required to raise the copper to its melting point? C. How much heat...
Problem3 A block of copper has a mass of 100 kg and an initial temperature of 900 K. Copper can be modeled as an incompressible substance with a specific heat capacity of 0.4 kJ/kg-K. a) The copper block is dropped into a large lake at 300 K and allowed to come to thermal equilibrium. How much entropy is generated (kJ/K)?
A 34 kg iron block and a 48-kg copper block, both initially at 80°C, are dropped into a large lake at 15°C. Thermal equilibrium is established after a while as a result of heat transfer between the blocks and the lake water. Determine the total entropy change for this process. The specific heat of Iron at room temperature is cp0.45 kJ/kg.K. The specific heat of copper at 27°C is ep 0,386 kJ/kg.K. Iron Lake 15°C Copper The total entropy change...
A copper block is removed from a 300°C oven and dropped into 1.00 kg of water at 20.0°C, which is located in an aluminum container of a mass of 0.250 kg. The system quickly reaches 25.5°, and then remains at that temperature. a) What is the mass of the copper block? b) How much energy did the copper block lose? c) How much energy did the water gain? d) As the temperature of water rises, the temperature of the copper...
4. A 0.500 kg piece of copper at an initial temperature of 20.0°C is placed in a water bath and the temperature of the metal is raised to 100.0°C. Note: The specific heat capacity of copper is 385J/kg K and the latent heat of fusion is 2.07x105J/kg. a. How much heat was required to raise the temperature of the copper? e. An identical piece of heated copper (at 100.0°C) is placed in a calorimeter containing 0.500 kg of an unknown...
4. A 0.500 kg piece of copper at an initial temperature of 20.0°C is placed in a water bath and the temperature of the metal is raised to 100.0°C. Note: The specific heat capacity of copper is 385J/kg K and the latent heat of fusion is 2.07x1057/kg. a. How much heat was required to raise the temperature of the copper? b. How much more heat would be required to raise the copper to its melting point? C. How much heat...
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