![4) A container has 7.0 kg of water in it. If 263.0 k] of heat is added to the system and it does 94.0 kJ of 4) work on its surroundings, how much does its temperature change? (The specific heat of water is 4184 J/kg K.) A) 5.8 K B) 0.16 K C) 0.0058 K D) 170 K](http://img.homeworklib.com/questions/fce84260-72aa-11ea-8898-b5c280c7399e.png?x-oss-process=image/resize,w_560)
Homework Answers
The temperature of 2.7 kg of water is 34° C. To cool the water, ice at...
The temperature of 2.7 kg of water is 34° C. To cool the water, ice at 0° C is added to it. The desired final temperature of the water is 11° C. The latent heat of fusion for water is 333.5 × 103 J/kg, and the specific heat capacity of water is 4186 J/(kg·C°). Ignoring the container and any heat lost or gained to or from the surroundings, determine how much mass m of ice should be added. m = kg
The temperature of 2.26 kg of water is 34 °C. To cool the water, ice at...
The temperature of 2.26 kg of water is 34 °C. To cool the water, ice at 0 °C is added to it. The desired final temperature of the water is 11 °C. The latent heat of fusion for water is 33.5 × 104 J/kg, and the specific heat capacity of water is 4186 J/(kg·C°). Ignoring the container and any heat lost or gained to or from the surroundings, determine how much mass m of ice should be added.
Questo 3 What is the heat capacity of 0.53 kg of water in /°C? The specific...
Questo 3 What is the heat capacity of 0.53 kg of water in /°C? The specific heat of water is 4184 1/19°C) Not yet answered Specificheat definition and example Marked out of Answer: F estion Queron 4 The specific heat of iron is AS M'. How much heat in is added to a 2.00 ton nail to use its temperature from 22°C to 200.0°C? Specific heat and example Marted out of Answer Thug question
9) A lab assistant pours 330 g of water at 45°C into an 855-g aluminum container...
9) A lab assistant pours 330 g of water at 45°C into an 855-g aluminum container that is at an initial temperature of 10°C. The specific heat of aluminum is 900 J/kg K, and that of water is 4186 J/kg K. What is the final temperature of the system, assuming no heat is exchanged with the surroundings? A) 35°c 9) B) 28°C C)32°C D) 33°C
A 2.4 kg pan at 155 degrees C is dumped into 3.5 kg of water at...
A 2.4 kg pan at 155 degrees C is dumped into 3.5 kg of water at 15 degrees C. What is the change in entropy? Specific heat of pan is 900 J/(kg*K), and specific heat of water is 4184 J/(kg*K).
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of...
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of ice is 2.10 kJ/kg K. kJ/K It takes 880 J to raise the temperature of 350 g of lead from 0°C to 20.0°C. What is the specific heat of lead? kJ/(kg K) A heating coil inside an electric kettle delivers 3.20 kW of electric power to the water in the kettle. How long will it take to raise the temperature of 0.390 kg of...
2) A person pours 400 g of water at 45°C into an 855-g aluminum container with...
2) A person pours 400 g of water at 45°C into an 855-g aluminum container with an initial temperature of 10°c. The specific heat of aluminum is 900 J/(kg-K) and that of water is 4190 J/(kg K). What is the final temperature of assuming no heat is exchanged with the surroundings? A) 3 B) 35°C D) 28°C E) 33°C 3) A heat engine with aneffic ency of 300% performs 300 of work. How much heat is discharged to the lower...
A 29 kg piece of zinc at 68◦C is placed in a container of water. The water...
A 29 kg piece of zinc at 68◦C is placed in a container of water. The water had a mass of 28 kg and a temperature of 20◦C before the zinc was added. The specific heat of zinc and water are 388 J/kg ·◦ C and 4180 J/kg ·◦ C, respectively. What is the final temperature of water and zinc? Answer in units of ◦ C.
A metal part is undergoing a heat-treating process, it has a mass of 12 kg and...
A metal part is undergoing a heat-treating process, it has a
mass of 12 kg and is initially at 950∘C. The part is quenched in a
tank containing 225 kg of water, initially at 35∘C. Consider the
heat transfer between the tank and its surroundings to be
negligible. Taking the specific heat of the metal part and water as
constant at 0.5 kJ/kg.K and 4.2 kJ/kg.K respectively, determine :
The final equilibrium temperature after quenching Tf= ∘C The amount
of...
1. Liquid nitrogen at −196° C (nitrogen’s boiling point) is placed in a container with 3...
1. Liquid nitrogen at −196° C (nitrogen’s boiling point) is placed in a container with 3 kg of water at 25° C. (a) Suppose you add just enough liquid nitrogen such that all the water just freezes (i.e., the final state of the water is ice at 0° C). Draw a complete energy interaction diagram for this scenario, including a conservation of energy equation. (b) How much liquid nitrogen should you put in the container such that all the water...
Questo 3 What is the heat capacity of 0.53 kg of water in /°C? The specific heat of water is 4184 1/19°C) Not yet answered Specificheat definition and example Marked out of Answer: F estion Queron 4 The specific heat of iron is AS M'. How much heat in is added to a 2.00 ton nail to use its temperature from 22°C to 200.0°C? Specific heat and example Marted out of Answer Thug question
9) A lab assistant pours 330 g of water at 45°C into an 855-g aluminum container that is at an initial temperature of 10°C. The specific heat of aluminum is 900 J/kg K, and that of water is 4186 J/kg K. What is the final temperature of the system, assuming no heat is exchanged with the surroundings? A) 35°c 9) B) 28°C C)32°C D) 33°C
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of ice is 2.10 kJ/kg K. kJ/K It takes 880 J to raise the temperature of 350 g of lead from 0°C to 20.0°C. What is the specific heat of lead? kJ/(kg K) A heating coil inside an electric kettle delivers 3.20 kW of electric power to the water in the kettle. How long will it take to raise the temperature of 0.390 kg of...
2) A person pours 400 g of water at 45°C into an 855-g aluminum container with an initial temperature of 10°c. The specific heat of aluminum is 900 J/(kg-K) and that of water is 4190 J/(kg K). What is the final temperature of assuming no heat is exchanged with the surroundings? A) 3 B) 35°C D) 28°C E) 33°C 3) A heat engine with aneffic ency of 300% performs 300 of work. How much heat is discharged to the lower...
A metal part is undergoing a heat-treating process, it has a
mass of 12 kg and is initially at 950∘C. The part is quenched in a
tank containing 225 kg of water, initially at 35∘C. Consider the
heat transfer between the tank and its surroundings to be
negligible. Taking the specific heat of the metal part and water as
constant at 0.5 kJ/kg.K and 4.2 kJ/kg.K respectively, determine :
The final equilibrium temperature after quenching Tf= ∘C The amount
of...
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