What is the final temperature when 100 g of iron at 90 degrees Celsius is placed...

Question

Question

What is the final temperature when 100 g of iron at 90 degrees Celsius is placed...

What is the final temperature when 100 g of iron at 90 degrees Celsius is placed in 400 g of water at 25 degrees Celsius? The specific heat capacity of iron 0.45 J/g*K and the specific heat capacity of water is 4.184 J/g*K.

science physics

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

let final temp be T
heat gained by water = mCdT = 400*4.184*(T - 25)
heat glost by iron = 100*0.45*(90 - T)
Heat lost = heat gained [conservation of energy]

400*4.184*(T-25) = 100*0.45*(90 - T)
37.1911T - 929.77 = 90 - T
T = 26.701 degrees

Add a comment

Answer 2

Similar Homework Help Questions

What is the final temperature when 100 g of iron at 90 degrees Celsius is placed...

What is the final temperature when 100 g of iron at 90 degrees Celsius is placed in 400 g of water at 25 degrees Celsius? The specific heat capacity of iron 0.45 J/g*K and the specific heat capacity of water is 4.184 J/g*K
A lead block with a mass of 46.5 g at a temperature of 76.98 degrees celsius...

A lead block with a mass of 46.5 g at a temperature of 76.98 degrees celsius was placed into a calorimeter containing 100.0 mL of water at a temperature of 20.6 degrees celsius. What is the equilibrium temperature if the specific heat of water is 4.184 J/g and the specific heat of lead is 0.158 J/gdegreeC?
an iron cylinder with a mass of 25.0g at 105 degrees celcius is placed in a...

an iron cylinder with a mass of 25.0g at 105 degrees celcius is placed in a beaker containing 25.0 ml of water at 25 degrees celcius. Assuming that no heat is lost to the surroundings, what will the final temperature of the water bne? the specific heat capacity of iron = .449 j/g degrees celcius and water = 4.18

Determine the final temperature (in K) if a 10.0 g piece of hot iron, at 77⁰C,...

Determine the final temperature (in K) if a 10.0 g piece of hot iron, at 77⁰C, is placed in 50.0 g of cold water at 20⁰C. (Specific heat capacity of iron is 0.45Jg·K and that of water is 4.184 Jg·K )
A hot lump of 32.3g of Copper at an initial temperature of 96.5 degrees Celsius in...

A hot lump of 32.3g of Copper at an initial temperature of 96.5 degrees Celsius in 50mL H2O initially at 25.0 degrees Celsius and allowed to reach thermal equilibrium. What is the final temperature of the copper and water, given that the specific hear is 0.385J/g°C and the specific heat of water is 4.184J/g°C? 4. A hot lump of 41.3 g of copper at an initial temperature of 94.8 °C is placed in 50.0 mL H2O initially at 25.0 °C...
an ice cube at 0.00 degrees celsius with a mass of 4.52 g is placed into...

an ice cube at 0.00 degrees celsius with a mass of 4.52 g is placed into 55g of water, initially at 23 degrees celsius. If no heat is lost to the surroundings, what is the final temperature of the entire water sample after all the ice is melted? (Specific heat of water is 4.184J/g*degrees celsius)

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...
find the final tempature of water when a 24.9g piece of iron at 84.8Celcius is placed...

find the final tempature of water when a 24.9g piece of iron at 84.8Celcius is placed into 75.0 grams of water at 20.0 celsius. the specific heat of iron is 0.450j/g celsuis. that specific heat of water is 4.18j/g celsius

An 810-g iron block is heated to 400 ∘C and placed in an insulated container (of...

An 810-g iron block is heated to 400 ∘C and placed in an insulated container (of negligible heat capacity) containing 38.0 g of water at 25.0 ∘C. What is the equilibrium temperature of this system? The average specific heat of iron over this temperature range is 560 J/(kg⋅K).

What is the final temperature when 100 g of iron at 90 degrees Celsius is placed...

Homework Answers

Add Answer to:
What is the final temperature when 100 g of iron at 90 degrees Celsius is placed...

Post as a guest

Earn Coins