Question

A copper calorimeter can with mass 0.860 kg contains 0.185 kg of water and 0.020 kg...

A copper calorimeter can with mass 0.860 kg contains 0.185 kg of water and 0.020 kg of ice in thermal equilibrium at atmospheric pressure.

Part A:

What is the temperature of the ice–water mixture?

Part B:

If 0.775 kg of lead at a temperature of 255 ∘C is dropped into the can, what is the final temperature of the system? (Assume no heat is lost to the surroundings.)

Homework Answers

Answer #1

(a) At atmospheric level, the water and ice can only remain at equilibrium at 273K.So, the temperature of the ice -water mixture is 273K.

(b) 0,775 kg lead at 528K dropped into the can. There will be heat exchange and heat lost by lead will be heat gained by copper can and ice -water mixture.

So, first check it has enough energy to overcome the latent heat of fusion, as first ice will convert to water.

latent heat of fusion for 0.02kg ice is 6.68KJ

specific heat of lead is 0.16

specific heat of ice is 2.03

specific heat of copper is 0.385

specific heat of water is 4.18

max heat lead can lost is 0.775*0.16*(528-273)=31.62KJ

So, all ice will fuse and by heat balance, assuming the system will reach a final temperature T.

0.775*0.16*(528 - T)=6.68+0.185*(T-273)*4.18 +0.02*(T-273)*4.18 + 0.86*0.385*(T-273)

T=322.82K

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A copper calorimeter can with mass 0.860 kgcontains 0.185 kg of water and 0.020 kg of...
A copper calorimeter can with mass 0.860 kgcontains 0.185 kg of water and 0.020 kg of ice in thermal equilibrium at atmospheric pressure. If 0.775 kg of lead at a temperature of 255 ∘C is dropped into the can, what is the final temperature of the system? (Assume no heat is lost to the surroundings.) Express your answer in degrees Celsius to three significant figures.
A copper pot with a mass of 0.515 kg contains 0.185 kg of water, and both...
A copper pot with a mass of 0.515 kg contains 0.185 kg of water, and both are at a temperature of 23.0 ∘C. A 0.275 kg block of iron at 83.5 ∘C is dropped into the pot. Find the final temperature of the system, assuming no heat loss to the surroundings.
A copper pot with a mass of 0.480 kg contains 0.170 kg of water, and both...
A copper pot with a mass of 0.480 kg contains 0.170 kg of water, and both are at a temperature of 20.0 ?C . A 0.270 kg block of iron at 83.0 ?C is dropped into the pot. Find the final temperature of the system, assuming no heat loss to the surroundings.
14.44) A copper pot with a mass of 0.510 kg contains 0.195 kg of water, and...
14.44) A copper pot with a mass of 0.510 kg contains 0.195 kg of water, and both are at a temperature of 21.5 ∘C . A 0.275 kg block of iron at 84.5 ∘C is dropped into the pot. A)Find the final temperature of the system, assuming no heat loss to the surroundings.
A copper pot with a mass of 0.500 kg contains 0.175 kg of water, and both...
A copper pot with a mass of 0.500 kg contains 0.175 kg of water, and both are at a temperature of 23.0 ∘C. A 0.240 kg block of iron at 85.5 ∘C is dropped into the pot. Find the final temperature of the system, assuming no heat loss to the surroundings. Express your answer in degrees Celsius.
A copper pot with a mass of 0.500 kg contains 0.195 kg of water, and both...
A copper pot with a mass of 0.500 kg contains 0.195 kg of water, and both are at a temperature of 22.5 ∘C. A 0.245 kg block of iron at 85.0 ∘C is dropped into the pot. Find the final temperature of the system, assuming no heat loss to the surroundings. Express your answer in degrees Celsius.
Part A A copper pot of mass 2.5 kg contains 5.2 litres of water (i.e. 5.2...
Part A A copper pot of mass 2.5 kg contains 5.2 litres of water (i.e. 5.2 kg) at room temperature (200C). An iron block of mass 9.4 kg is dropped into the water and when the system comes into thermal equilibrium, a temperature of 380C is measured. What is the initial temperature of the iron block? Give your answer in oC to three significant figures. Part B Iron has a specific heat that is larger than that of copper. A...
A copper pot with a mass of 0.450 kg contains 0.235 kg of water and both...
A copper pot with a mass of 0.450 kg contains 0.235 kg of water and both are at a temperature of 22.5℃. A 0.265 kg block of copper at 455.5℃ is dropped into the pot. Determine the final temperature of the mixture.
A Styrofoam bucket of negligible mass contains 1.90 kg of water and 0.460 kg of ice....
A Styrofoam bucket of negligible mass contains 1.90 kg of water and 0.460 kg of ice. More ice, from a refrigerator at -16.0 ∘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 0.788 kg . Assuming no heat exchange with the surroundings, what mass of ice was added? (kg)
A Styrofoam bucket of negligible mass contains 1.55 kg of water and 0.475 kg of ice....
A Styrofoam bucket of negligible mass contains 1.55 kg of water and 0.475 kg of ice. More ice, from a refrigerator at -15.4 ∘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 0.784 kg . Assuming no heat exchange with the surroundings, what mass of ice was added?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT