An ice sample at initial temperature Ti (in °C) below zero is introduced into an aluminum...
An ice sample at initial temperature Ti (in °C) below zero is introduced into an aluminum calorimeter of mass ma filled with mass mw of water at room temperature of Tr. After thermal equilibrium is reached, the calorimeter contains only water at final temperature Tf. Denoting the specific heat constants for ice, water, and aluminum by ci, cw, and ca respectively, find an algebraic expression for the mass of the ice sample in terms of the given variables and L, the latent heat of fusion of water.
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An ice sample at initial temperature Ti (in °C)
below zero is introduced into an aluminum...
Initially you have mW = 3.4 kg of water at TW = 54°C in an insulated container. You add ice at TI = -21°C to the contain...
Initially you have mW = 3.4 kg of water at
TW = 54°C in an insulated container. You add
ice at TI = -21°C to the container and the mix
reaches a final, equilibrium temperature of Tf
= 25°C. The specific heats of ice and water are
cI = 2.10×103J/(kg⋅°C) and
cW = 4.19×103 J/(kg⋅°C),
respectively, and the latent heat of fusion for water is
Lf = 3.34×105 J/kg.
(11%) Problem 7: Initially you have mw = 3.4 kg of...
We did the lab of latent heat of fusion of ice, and I am confused that what the 'water equivalent...
We did the lab of latent heat of fusion of ice, and I am
confused that what the 'water equivalent' represents.
I thought it is the amount (kg) of water, but it is
mccc according to this lab manual, which unit
is (J/oC).
Please answer what the water equivalent represents and the unit
of it.
- In this experiment, an ice cube of mass mt, assumed to be at 0°C, is placed in a calorimeter containing a mass of water...
7. A cube of ice is taken from the freezer at -4.0 °C and placed in...
7. A cube of ice is taken from the freezer at -4.0 °C and placed in a 70 g aluminum calorimeter filled with 450 g of water at room temperature of 25.0 °C. The System reaches an equilibrium temperature of 20.0°C. Calculate the mass of the ice cube. Given that, Latent heat of fusion of ice Specific heat capacity of water 4186 Jkg-1 °C-1 Specific heat capacity of aluminum 880 Jkg-1K-1 333700 Jkg-1
3 please Question 3 10 pts 0.2000kg of molten copper at the melting point 1083°C, is...
3 please
Question 3 10 pts 0.2000kg of molten copper at the melting point 1083°C, is placed into a 375.2g aluminum calorimeter cup filled with a quantity of ice both initially at 0.000°C. If the final temperature of the system is 91.50°C, what is the mass of the ice in kilograms in the calorimeter cup initially? The specific heat for water is 4186J/kg°C, for copper is 387J/kg°C, and for aluminum is 900 J/kg°C. The latent heat of fusion for water...
Chapter 18, Problem 037 A person makes a quantity of iced tea by mixing 620 g...
Chapter 18, Problem 037 A person makes a quantity of iced tea by mixing 620 g of hot tea (essentially water) with an equal mass of ice at its melting point. Assume the mixture has negligible energy exchanges with its environment. (a) If the tea's initial temperature is T 82°C, when thermal equilibrium is reached what are the mixture's temperature Tf and (b) the remaining mass mf of ice? If Ti 67°C, when thermal equilibrium is reached what are (c)...
cork thermometer plastic lid ← stirrer insulator ring reservoir ice and water aluminum container Figure 5.1:...
cork thermometer plastic lid ← stirrer insulator ring reservoir ice and water aluminum container Figure 5.1: A Simple Calorimeter In the other direction, when the phase change is from liquid to solid, the sample must release the same amount of energy. For water at its normal freezing or melting temperature, Lf=79.5 cal/g = 333 kJ/kg (5.2) This lab employs a double-wall calorimeter as shown in Figure 5.1 to measure the heat of fusion for ice. The calorimeter consists of an...
A cube of ice is taken from the freezer at -9.5 ∘C and placed in a...
A cube of ice is taken from the freezer at -9.5 ∘C and placed in a 75-g aluminum calorimeter filled with 330 g of water at room temperature of 20.0 ∘C. The final situation is observed to be all water at 17.0 ∘C. The specific heat of ice is 2100 J/kg⋅C∘, the specific heat of aluminum is 900 J/kg⋅C∘, the specific heat of water is is 4186 J/kg⋅C∘, the heat of fusion of water is 333 kJ/Kg. What was the...
(20%) Problem 2: A piece of unknown material has a mass of m, = 0.79 kg and an initial temperature of Tu = 79°C. The s...
(20%) Problem 2: A piece of unknown material has a mass of m, = 0.79 kg and an initial temperature of Tu = 79°C. The specific heat of water is cw = 4.180 x 102 J/(kg:°C). 50% Part (a) The sample of material is dropped into my = 1.4 kg of water at T = 19°C in a calorimeter. The calorimeter reaches a final temperature of Te = 34°C. Enter an expression for the specific heat of the unknown material,...
An ice cube of mass 9.0g is added to a cup of coffee, whose temperature is 90.0 °C and which contains 120.0 g of li...
An ice cube of mass 9.0g is added to a cup of coffee, whose temperature is 90.0 °C and which contains 120.0 g of liquid. Assume the specific heat capacity of the coffee is the same as that of water. The heat of fusion of ice (the heat associated with ice melting) is 6.0kJ/mol. Find the temperature of the coffee after the ice melts. Use the equation given in the lab manual on page 86. Ignore the + (CC) (AT)...
(15 points) An ice cube of mass 0.0340 kg and temperature -10.00 °C is placed in...
(15 points) An ice cube of mass 0.0340 kg and temperature -10.00 °C is placed in the steam room at a gym. The steam room, which is quite large, is filled with 2.000 kg of steam at a temperature of 110.0 °C (a) (5 points) How much ice is present, and at what temperature, when the ice and steam reach thermal equilibrium? Your answer should be two numbers (b) (5 points) How much water is present, and at what temperature,...
Initially you have mW = 3.4 kg of water at
TW = 54°C in an insulated container. You add
ice at TI = -21°C to the container and the mix
reaches a final, equilibrium temperature of Tf
= 25°C. The specific heats of ice and water are
cI = 2.10×103J/(kg⋅°C) and
cW = 4.19×103 J/(kg⋅°C),
respectively, and the latent heat of fusion for water is
Lf = 3.34×105 J/kg.
(11%) Problem 7: Initially you have mw = 3.4 kg of...
We did the lab of latent heat of fusion of ice, and I am
confused that what the 'water equivalent' represents.
I thought it is the amount (kg) of water, but it is
mccc according to this lab manual, which unit
is (J/oC).
Please answer what the water equivalent represents and the unit
of it.
- In this experiment, an ice cube of mass mt, assumed to be at 0°C, is placed in a calorimeter containing a mass of water...
7. A cube of ice is taken from the freezer at -4.0 °C and placed in a 70 g aluminum calorimeter filled with 450 g of water at room temperature of 25.0 °C. The System reaches an equilibrium temperature of 20.0°C. Calculate the mass of the ice cube. Given that, Latent heat of fusion of ice Specific heat capacity of water 4186 Jkg-1 °C-1 Specific heat capacity of aluminum 880 Jkg-1K-1 333700 Jkg-1
3 please
Question 3 10 pts 0.2000kg of molten copper at the melting point 1083°C, is placed into a 375.2g aluminum calorimeter cup filled with a quantity of ice both initially at 0.000°C. If the final temperature of the system is 91.50°C, what is the mass of the ice in kilograms in the calorimeter cup initially? The specific heat for water is 4186J/kg°C, for copper is 387J/kg°C, and for aluminum is 900 J/kg°C. The latent heat of fusion for water...
Chapter 18, Problem 037 A person makes a quantity of iced tea by mixing 620 g of hot tea (essentially water) with an equal mass of ice at its melting point. Assume the mixture has negligible energy exchanges with its environment. (a) If the tea's initial temperature is T 82°C, when thermal equilibrium is reached what are the mixture's temperature Tf and (b) the remaining mass mf of ice? If Ti 67°C, when thermal equilibrium is reached what are (c)...
cork thermometer plastic lid ← stirrer insulator ring reservoir ice and water aluminum container Figure 5.1: A Simple Calorimeter In the other direction, when the phase change is from liquid to solid, the sample must release the same amount of energy. For water at its normal freezing or melting temperature, Lf=79.5 cal/g = 333 kJ/kg (5.2) This lab employs a double-wall calorimeter as shown in Figure 5.1 to measure the heat of fusion for ice. The calorimeter consists of an...
(20%) Problem 2: A piece of unknown material has a mass of m, = 0.79 kg and an initial temperature of Tu = 79°C. The specific heat of water is cw = 4.180 x 102 J/(kg:°C). 50% Part (a) The sample of material is dropped into my = 1.4 kg of water at T = 19°C in a calorimeter. The calorimeter reaches a final temperature of Te = 34°C. Enter an expression for the specific heat of the unknown material,...
An ice cube of mass 9.0g is added to a cup of coffee, whose temperature is 90.0 °C and which contains 120.0 g of liquid. Assume the specific heat capacity of the coffee is the same as that of water. The heat of fusion of ice (the heat associated with ice melting) is 6.0kJ/mol. Find the temperature of the coffee after the ice melts. Use the equation given in the lab manual on page 86. Ignore the + (CC) (AT)...
(15 points) An ice cube of mass 0.0340 kg and temperature -10.00 °C is placed in the steam room at a gym. The steam room, which is quite large, is filled with 2.000 kg of steam at a temperature of 110.0 °C (a) (5 points) How much ice is present, and at what temperature, when the ice and steam reach thermal equilibrium? Your answer should be two numbers (b) (5 points) How much water is present, and at what temperature,...
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