Question

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

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Solution,

Q = m c dT

mI ci Ti = ma ca Ta + mw cw Tw

0.310 x 450 x 143 = 0.095 x 900 x 27 + 0.250 x Cw x 27

Cw = 2613.33 J/kg

Comment in case any doubt please rate my answer .

Add a comment
Know the answer?
Add Answer to:
When a 310-g piece of iron at 180 ∘C is placed in a 95-g aluminum calorimeter...
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
  • An 920-g piece of iron at 100* C is dropped into a calorimeter of negligible heat...

    An 920-g piece of iron at 100* C is dropped into a calorimeter of negligible heat capacity containing 50g of ice at 0* C and 92 g of water, also at 0* C. What is the final temperture of the system? The specific heat of iron is 448 J/kg K and Latent heat of fusion of water is 33.5 x 10^4 J/kg Please show all necessary equations and steps. thank you!

  • A 336-9 piece of iron at 220°C is placed in a 60.0-g aluminum cup containg 432...

    A 336-9 piece of iron at 220°C is placed in a 60.0-g aluminum cup containg 432 g of glycerin at 13.6°C The specific heat of iron is 0.110 met aluminum 0.215 year and glycerin 0.549 Part A Determine the equilibrium temperature of the system Express your answer using three significant figures. 0 AM Op? Submit Request Answer Provide Feedback

  • Problem 5: A 95-g aluminum calorimeter contains 241 g of water. The aluminum and water are...

    Problem 5: A 95-g aluminum calorimeter contains 241 g of water. The aluminum and water are initially in thermal equilibrium at a temperature of 9.3°C. Two solid objects are then placed in the water. One is a 50.3-g piece of copper with a specific heat of 390 J/(kg:°C) and an initial temperature of 81.2°C. The other is of unknown material with a mass of 69 g and an initial temperature of 100°C. The entire system reaches thermal equilibrium at a...

  • An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter...

    An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10°C. Two metallic blocks are placed into the water. One is a 51.0-g piece of copper at 80°C. The other has a mass of 544 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. (a) Determine the specific heat of the unknown sample. (J/Kg*C) (b) Using the...

  • The value of specific heat for copper is 360 J/kg x C degrees, for aluminum is...

    The value of specific heat for copper is 360 J/kg x C degrees, for aluminum is 900 J/kg x C degrees, and for water is 4186 J/kg x C degrees. Course Home <Ch 14 HW Item 6 6 of 10 Consta The value of specific heat for copper is 390 J/kg.C.for aluminun is 900 J/kg.C. and for water is 4186 J/kg.C. Part A What will be the equilibrium temperature when a 215 g block of copper at 235 °C is...

  • Problem 14.20 Constants Part A A 235-g sample of a substance is heated to 350 °C...

    Problem 14.20 Constants Part A A 235-g sample of a substance is heated to 350 °C and then plunged into a 105-g aluminum calorimeter cup containing 195 g of water and a 17-g glass thermometer at 13.5 °C. The final temperature is 35.0°C. The value of specific heat for aluminium is 900 J/kg-C" , for glass is 840 J/kg . C" , and for water is 4186 J/kg C What is the specific heat of the substance? (Assume no water...

  • Question 1 (3 marks) A concrete highway is built of slabs 12 m long (at 15°C)....

    Question 1 (3 marks) A concrete highway is built of slabs 12 m long (at 15°C). How wide should the expansion cracks be- tween the slabs be at 15°C to prevent buckling of the concrete over the range of temperature -30°C to +50°C? The coefficient of thermal expansion for concrete is 12 x 10""(Cº). Question 2 (3+3 = 6 marks) (a) At 18.0°C, a certain quantity of oxygen occupies a volume of 61.5 L at an absolute pressure of 2.45...

  • 1) An aluminum calorimeter of mass 58 g, has 155 g water, both at a temperature...

    1) An aluminum calorimeter of mass 58 g, has 155 g water, both at a temperature of 21°C. A 108-g piece of metal originally kept in boiling water (T = 100°C) is transferred to the calorimeter. The final equilibrium temperature of the mixture is 26.6°C. Calculate the specific heat of the metal (in J/kg). Specific Heats: Al = 900 J/kg, water =4186 J/g 2) How much heat, in kilo-joules, is required to convert 19 g of ice at -13°C into...

  • A cube of ice is taken from the freezer at -7.5 °C and placed in a...

    A cube of ice is taken from the freezer at -7.5 °C and placed in a 95-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 16.0 °C. The specific heat of ice is 2100 J/kg · Cº, 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...

  • A 297 g silver figure of a polar bear is dropped into the 203 g aluminum...

    A 297 g silver figure of a polar bear is dropped into the 203 g aluminum cup of a well‑insulated calorimeter containing 273 g of liquid water at 20.3 ∘ C . The bear's initial temperature is 99.1 ∘ C . What is the final temperature of the water, cup, and bear when they reach thermal equilibrium? The specific heats of silver, aluminum, and liquid water are, respectively, 234 J / ( kg ⋅ K ) , 910 J /...

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