Question

A 5 kg iron bar is taken from a forge at a temperature of 1000?C and...

A 5 kg iron bar is taken from a forge at a temperature of 1000?C and plunged into a bucket containing 10 kg of water at 60?C. Find the mass of water that is converted into steam.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The heat released by the iron = mass * specific heat * temperature change.

The temperature change of the iron is 1000C - 100C, the 100C being the boiling point of water.

The water is first heated up to 100C, its boiling point. energy = mass * specific heat * (100C - 60C)

The water that boils absorbs heat, that energy = mass of water boiled * latent heat of vaporization.

mass of iron * specific heat * 900C = total mass of water * specific heat * 40C + mass of water boiled * heat of vaporization.

5*450*900 = 10*4186*40 + M*2260*103

M = 0.155 kg

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 0.26 kg iron horseshoe that is initially at 787 ◦C is dropped into a bucket...
A 0.26 kg iron horseshoe that is initially at 787 ◦C is dropped into a bucket containing 20 kg of water at 34◦C. What is the final equilibrium temperature? Neglect any energy transfer to or from the surroundings and assume the specific heat of iron is 448 J/kg · ◦ C . The specific heat of water is 4186 J/kg · ◦ C . Answer in units of ◦C
An iron boiler of mass 180 kg contains 770 kg of water at 21 ∘C. A...
An iron boiler of mass 180 kg contains 770 kg of water at 21 ∘C. A heater supplies energy at the rate of 58,000 kJ/h. The specific heat of iron is 450 J/kg⋅C∘, the specific heat of water is 4186 J/kg⋅C∘, the heat of vaporization of water is 2260 kJ/kg⋅C∘. Assume that before the water reaches the boiling point, all the heat energy goes into raising the temperature of the iron or the steam, and none goes to the vaporization...
A 0.440 kg iron horseshoe that is initially at 555°C is dropped into a bucket containing...
A 0.440 kg iron horseshoe that is initially at 555°C is dropped into a bucket containing 18.1 kg of water at 24.0°C. What is the final equilibrium temperature (in °C)? Neglect any heat transfer to or from the surroundings. Do not enter units.
An iron boiler of mass 180 kg contains 770 kg of water at 21 ∘C. A...
An iron boiler of mass 180 kg contains 770 kg of water at 21 ∘C. A heater supplies energy at the rate of 58,000 kJ/h. The specific heat of iron is 450 J/kg⋅C∘, the specific heat of water is 4186 J/kg⋅C∘, the heat of vaporization of water is 2260 kJ/kg⋅C∘. Assume that before the water reaches the boiling point, all the heat energy goes into raising the temperature of the iron or the steam, and none goes to the vaporization...
An iron boiler of mass 180 kg contains 850 kg of water at 23 ∘C. A...
An iron boiler of mass 180 kg contains 850 kg of water at 23 ∘C. A heater supplies energy at the rate of 58,000 kJ/h. The specific heat of iron is 450 J/kg⋅C∘, the specific heat of water is 4186 J/kg⋅C∘, the heat of vaporization of water is 2260 kJ/kg⋅C∘. Assume that before the water reaches the boiling point, all the heat energy goes into raising the temperature of the iron or the steam, and none goes to the vaporization...
An iron boiler of mass 180 kg contains 690 kg of water at 23 ∘C. A...
An iron boiler of mass 180 kg contains 690 kg of water at 23 ∘C. A heater supplies energy at the rate of 58,000 kJ/h. The specific heat of iron is 450 J/kg⋅C∘, the specific heat of water is 4186 J/kg⋅C∘, the heat of vaporization of water is 2260 kJ/kg⋅C∘. Assume that before the water reaches the boiling point, all the heat energy goes into raising the temperature of the iron or the steam, and none goes to the vaporization...
An iron boiler of mass 180 kg contains 830 kg of water at 11 ∘C. A...
An iron boiler of mass 180 kg contains 830 kg of water at 11 ∘C. A heater supplies energy at the rate of 58,000 kJ/h. The specific heat of iron is 450 J/kg⋅C∘, the specific heat of water is 4186 J/kg⋅C∘, the heat of vaporization of water is 2260 kJ/kg⋅C∘. Assume that before the water reaches the boiling point, all the heat energy goes into raising the temperature of the iron or the steam, and none goes to the vaporization...
Exactly 17.7 mL of water at 35.0 °C are added to a hot iron skillet. All...
Exactly 17.7 mL of water at 35.0 °C are added to a hot iron skillet. All of the water is converted into steam at 100.0°C. The mass of the pan is 1.20 kg and the molar heat capacity of iron is 25.19 J/(mol·°C). What is the temperature change of the skillet?
An iron boiler of mass 180 kg contains 790 kgof water at 21 ∘C. A heater...
An iron boiler of mass 180 kg contains 790 kgof water at 21 ∘C. A heater supplies energy at the rate of 58,000 kJ/h. The specific heat of iron is 450 J/kg⋅C∘, the specific heat of water is 4186 J/kg⋅C∘, the heat of vaporization of water is 2260 kJ/kg⋅C∘. Assume that before the water reaches the boiling point, all the heat energy goes into raising the temperature of the iron or the steam, and none goes to the vaporization of...
Exactly 10.8 mL of water at 30.0 degrees C are added to a hot iron skillet....
Exactly 10.8 mL of water at 30.0 degrees C are added to a hot iron skillet. All of the water is converted into steam at 100 degrees C. The mass of the pan is 1.20 kg and the molar heat capacity of iron is 25.19 J/(mol*degrees C). What is the temperature change of the skillet?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT