Question

In: Physics

12-11)A 38-g ice cube floats in 230 g of water in a 100-g copper cup; all...

12-11)A 38-g ice cube floats in 230 g of water in a 100-g copper cup; all are at a temperature of 0°C. A piece of lead at 96°C is dropped into the cup, and the final equilibrium temperature is 12°C. What is the mass of the lead? (The heat of fusion and specific heat of water are 3.33 10⁵ J/kg and 4,186 J/kg · °C, respectively. The specific heat of lead and copper are 128 and 387 J/kg · °C, respectively.)

13)A student measures the following data in a calorimetry experiment designed to determine the specific heat of aluminum. (Do not assume atmospheric pressure.)

Initial temperature of water and calorimeter:	70°C
Mass of water:	0.400 kg
Mass of calorimeter:	0.040 kg
Specific heat of calorimeter:	0.63 kJ/kg · °C
Initial temperature of aluminum:	26.5°C
Mass of aluminum:	0.200 kg
Final temperature of mixture:	65.9°C

Use these data to determine the specific heat of aluminum.
J/kg · °C

Solutions

Expert Solution

Now, this ice is converted into water

Energy of system is conserved.

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

1. A 100 g ice cube at -10?C is placed in an aluminum cup whose initial...

1. A 100 g ice cube at -10?C is placed in an aluminum cup whose initial temperature is 70?C. The system comes to an equilibrium temperature of 20?C. What is the mass of the cup in kg. 2.Radiation from the head is a major source of heat loss from the human body. Model a head as a 20-cm-diameter, 20-cm-tall cylinder with a flat top.If the body's surface temperature is 36 ?C , what is the net rate of heat loss...

8. An ice cube (formed by pure water) floats on salt water. The specific gravity of...

8. An ice cube (formed by pure water) floats on salt water. The specific gravity of salt water is 1024. Calculate the percent of the submerged volume. 9. A house has a roof with 100,000 N of weight and 12 m^2 of rectangular area. The pressure on the outside of the house is 0.95 atm. What minimum pressure is required inside the house to raise the roof? 10. A cylinder has a height of 1.80 meters and its circular caps...

A 10 g ice cube at 0oC is melted in 100 g water initially at 20oC....

A 10 g ice cube at 0oC is melted in 100 g water initially at 20oC. The equilibrium temperature of the mixture is 10.93oC. Calculate: a) The heat lost by the water. b) The heat gained by the melted water of the ice cube. c) The heat absorbed by the ice to achieve melting.

A 31 g ice cube at -15.0oC is placed in 139 g of water at 48.0oC....

A 31 g ice cube at -15.0oC is placed in 139 g of water at 48.0oC. Find the final temperature of the system when equilibrium is reached. Ignore the heat capacity of the container and assume this is in a calorimeter, i.e. the system is thermally insulated from the surroundings. Give your answer in oC with 3 significant figures. Specific heat of ice: 2.090 J/g K Specific heat of water: 4.186 J/g K Latent heat of fusion for water: 333...

A 26 g ice cube at -15.0oC is placed in 204 g of water at 48.0oC....

A 26 g ice cube at -15.0oC is placed in 204 g of water at 48.0oC. Find the final temperature of the system when equilibrium is reached. Ignore the heat capacity of the container and assume this is in a calorimeter, i.e. the system is thermally insulated from the surroundings. Give your answer in oC with 3 significant figures. Specific heat of ice: 2.090 J/g K Specific heat of water: 4.186 J/g K Latent heat of fusion for water: 333...

A light foam cup contains Y*100 g of water at 75.0°C. I add ice with an...

A light foam cup contains Y*100 g of water at 75.0°C. I add ice with an initial temperature of 0.00°C to the water until the temperature is 40.0°C. 16.How much ice did I add? 17.What happened to the entropy of the system of ice and water when I mixed them? Y=24

In an experiment, 698 g of water is in a copper calorimeter cup of mass 204...

In an experiment, 698 g of water is in a copper calorimeter cup of mass 204 g. The cup and the water are at an initial temperature of 11.3 oC. An unknown material with a mass of 411 g at a temperature of 421.8 oC is placed in the water. The system reaches thermal equilibrium at 31.1 oC. What is the specific heat of the unknown material?

In an experiment, 426 g of water is in a copper calorimeter cup of mass 205...

In an experiment, 426 g of water is in a copper calorimeter cup of mass 205 g. The cup and the water are at an initial temperature of 10.9 oC. An unknown material with a mass of 361 g at a temperature of 296.1 oC is placed in the water. The system reaches thermal equilibrium at 36.1 oC. What is the specific heat of the unknown material? units = J/kg-C

A 50-g cube of ice, initially at 0.0°C, is dropped into 200 g of water in...

A 50-g cube of ice, initially at 0.0°C, is dropped into 200 g of water in an 80-g aluminum container, both initially at 30°C. What is the final equilibrium temperature? (Specific heat for aluminum is 900 J/kg×°C, the specific heat of water is 4 186 J/kg×°C, and Lf = 3.33 ´ 105 J/kg.)

A 116-g cube of ice at 0 ∘∘C is dropped into 1.26 kg of water that...

A 116-g cube of ice at 0 ∘∘C is dropped into 1.26 kg of water that was originally 84.1∘C. What is the final temperature of the water after the ice melts and the water comes to thermal equilibrium? This problem requires a lot of algebra. You will make fewer errors if you solve for the answer using symbols and then plug in the numbers. The specific heat of water and the latent heat of fusion for water are given in...

Subjects