Question

Homework Problem: 10kg of iron (Ciron 450 Jkg C) at 200°C is put in 20kg of water (Cuater 4186 J/kg C) at 20°C. Calculate the final temperature when they reach thermal equilibrium. 7. tempfinal
0 0
Add a comment Improve this question Transcribed image text
Answer #1

200-T2eT-20) to)(4 18.6044( T-20) = 18-6044T-372-088 19,60YYT= S72.088

Add a comment
Know the answer?
Add Answer to:
Homework Problem: 10kg of iron (Ciron 450 Jkg C) at 200°C is put in 20kg of...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Problem 2: (10 pts) A 30-kg iron block at initial temperature 200°C and a 40-kg copper...

    Problem 2: (10 pts) A 30-kg iron block at initial temperature 200°C and a 40-kg copper block at initial temperature 100°C are dropped into a very large lake at 20°C. Thermal equilibrium is established after a while as a result of heat transfer between the blocks and lake water. Both blocks have constant specific heats, i.e. Ciron = 0.45 kJ/kg. K and Ccopper = 0.386 kJ/kg. K. Hint: The very large lake can be treated as a heat reservoir and...

  • A 0.40-kg iron horseshoe, just forged and very hot (Figure 1), is dropped into 1.15 L...

    A 0.40-kg iron horseshoe, just forged and very hot (Figure 1), is dropped into 1.15 L of water in a 0.33-kg iron pot initially at 20.0∘C. The value of specific heat for iron is 450 J/kg⋅C∘ , and for water is 4186 J/kg⋅C∘ . If the final equilibrium temperature is 25.0 ∘C, Determine the initial temperature of the hot horseshoe.

  • An 825 g iron block is heated to 352°C and placed in an insulated container (of...

    An 825 g iron block is heated to 352°C and placed in an insulated container (of negligible heat capacity) containing 40.0 g of water at 20.0°C. The following may be useful: specific heat of water = 4186 J/(kg K); specific heat of water vapor = 2090 J/(kg K); specific heat of iron = 560 J/(kg K); latent heat of vaporization for water = 2.26 x 106 J/kg. a. Is the final temperature less than, equal to, or larger than 100°C?...

  • An 825 g iron block is heated to 352°C and placed in an insulated container (of...

    An 825 g iron block is heated to 352°C and placed in an insulated container (of negligible heat capacity) containing 40.0 g of water at 20.0°C. The following may be useful: specific heat of water = 4186 J/(kg K); specific heat of water vapor = 2090 J/(kg K); specific heat of iron = 560 J/(kg K); latent heat of vaporization for water = 2.26 x 106 J/kg. Is the final temperature less than, equal to, or larger than 100°C? You...

  • A hot gold bar that is 45kg is lowered into a 20kg ice bath that is...

    A hot gold bar that is 45kg is lowered into a 20kg ice bath that is 30 percentage ice and the rest water that is in an iron container that has a mass of 2kg. Assume the ice bath and iron container is at thermal equilibrium to start. The final equilibrium temperature is 37 degree C. How much energy input is needed to convert the ice to water? Assuming no energy is lost to the environment and the system is...

  • (20%) Problem 3: Athermos contains mj = 0.73 kg of tea at T 33° C. Ice...

    (20%) Problem 3: Athermos contains mj = 0.73 kg of tea at T 33° C. Ice (m2 0.075 kg, T2 0° C) is added to it. The heat capacity of both water and tea is c 4186 J/(kg K), and the latent heat of fusion for water is L,= 33.5 x 104 Jkg. 50% Part (a) Input an expression for the final temperature after the ice has melted and the system has reached thermal equilibrium. Grade Summary T= Deductions 0%...

  • (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,...

  • When a 310-g piece of iron at 180 ∘C is placed in a 95-g aluminum calorimeter...

    When a 310-g piece of iron at 180 ∘C is placed in a 95-g aluminum calorimeter cup containing 250 g of liquid at 10∘C, the final temperature is observed to be 37 ∘C. The value of specific heat for iron is 450 J/kg⋅C∘, and for aluminum is 900 J/kg⋅C∘. Part A Determine the specific heat of the liquid. Express your answer using two significant figures. c c = nothing Jkg⋅C∘ Request Answer

  • A hot lump of 42.5 g of iron at an initial temperature of 98.4 °C is...

    A hot lump of 42.5 g of iron at an initial temperature of 98.4 °C is placed in 50.0 mL of H2O initially at 25.0 °C and allowed to reach thermal equilibrium. What is the final temperature of the iron and water given that the specific heat of iron is 0.449 J/(g·°C)? Assume no heat is lost to surroundings.

  • A hot lump of 30.9 g of iron at an initial temperature of 86.4 °C is...

    A hot lump of 30.9 g of iron at an initial temperature of 86.4 °C is placed in 50.0 mL H, initially at 25.0 °C and allowed to reach thermal equilibrium. What is the final temperature of the iron and water, given that the specific heat of iron is 0.449 J/(g.°C)? Assume no heat is lost to surroundings.

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT