# Physics

posted by .

A cube of ice is taken from the freezer at -8.8°C and placed in a 103 g aluminum calorimeter filled with 321 g of water at room temperature of 20°C. The final situation is observed to be all water at 15°C. What was the mass of the ice cube?

• Physics -

m1 =?
m2 = 0.321 kg,
m3 = 0.103 kg,
c1 = 2060 J/kg•degr is heat capacity of ice,
c2 = 4180 J/kg•degr is heat capacity of water,
c3 = 930 J/kg•degr is heat capacity of Al,
r =335000 the heat of fusion (ice-water),
Δt1 = 8.8 degr, Δt2 = 15 degr, Δt3 = 5 degr.
m1• c1• Δt1 + r• m1 + m1• c2• Δt2 = c2• m2•Δt3 +c3• m3• Δt3,
m1 = Δt3•( c2• m2 +c3• m3 )/( c1• Δt1 + r + c2• Δt2)

• Physics -

Thanks Elena your a life saver :)

• Physics -

She's right!

## Similar Questions

1. ### physics

A 50g ice cube is added to 110g of water in a 62g aluminum cup. The water and cup initially have a temperature of 23°C. Find the initial temperature of the ice cube such that all of the water is just turned to ice. Use the following …
2. ### phy

A cube of ice is taken from the freezer at -7.5°C and placed in a 101 g aluminum calorimeter filled with 282 g of water at room temperature of 20°C. The final situation is observed to be all water at 16°C. What was the mass of the …
3. ### college physics

A cube of ice is taken from the freezer at -9.5 degree Celsius and placed in a 99 g aluminum calorimeter filled with 327 g of water at room temperature of 20.0 degree celsius. The final situation is observed to be all water at 17.0 …
4. ### Physics

1). A hot iron horseshoe (mass=.40kg), just forged, is dropped into 1.35L of water in a .30kg iron pot initially at 20.0 degrees Celsius. If the final equilibrium temperature is 25.0 degrees Celsius, estimate the initial temperature …
5. ### physics

A cube of ice is take from the freezer at -8.5C and placed in a 95g calorimeter aluminum cup containing 310g of water at 20degC. The final situation is observed to be all water at 17degC. What was the mass of the ice cube?
6. ### Physics

A cube of ice is taken from the freezer at -8.5 degrees celsius and placed in a 100 gram aluminum calorimeter filled with 300 grams of water at room temperature of 20 degrees celsius. the final situation is observed to be all water …
7. ### physics

A 40-g block of ice is cooled to −71°C and is then added to 590 g of water in an 80-g copper calorimeter at a temperature of 27°C. Determine the final temperature of the system consisting of the ice, water, and calorimeter. …
8. ### physics

A 40-g block of ice is cooled to −71°C and is then added to 590 g of water in an 80-g copper calorimeter at a temperature of 27°C. Determine the final temperature of the system consisting of the ice, water, and calorimeter. …
9. ### chemistry

Suppose you add a small ice cube to room temperature water in a coffee cup calorimeter. What is the final temperature when all the ice is melted?
10. ### Physics

A cube of ice is taken from the freezer at -9.0°C and placed in a 71-g aluminum calorimeter filled with 261g of water at room temperature of 20.0°C. The final situation is observed to be all water at 13.4°C. What was the mass of …

More Similar Questions