A blacksmith cools a chunk of iron initially at 625 °C by trickling water from a jug over it. The water in the jug has a temperature of 20.0°C. All of the water boils away and the iron chunk cools down 120 °C. If, in total, he poured 0.80 kg of water over the iron, what is the mass of this chunk of iron? The specific heat capacity for water is 4190 J/(kg.°C). Water has a melting point of 0°C and a boiling point is 100°C. The latent heat of fusion for water is 3.34 x105 J/kg and its latent heat of vaporization is 2.26 x106 J/kg. The specific heat capacity for iron is 470 J/(kg.°C). Iron has a melting point of 1538°C. The latent heat of fusion for iron is 2.47 x105 J/kg

A blacksmith cools a chunk of iron initially at 625 °C by trickling water from a jug over it. The water in the jug has a temperature of 20.0°C. All of the water boils away and the iron chunk cools down 120 °C. If, in total, he poured 0.80 kg of water over the iron, what is the mass of this chunk of iron? The specific heat capacity for water is 4190 J/(kg.°C). Water has a melting point of 0°C and a boiling point is 100°C. The latent heat of fusion for water is 3.34 x105 J/kg and its latent heat of vaporization is 2.26 x106 J/kg. The specific heat capacity for iron is 470 J/(kg.°C). Iron has a melting point of 1538°C. The latent heat of fusion for iron is 2.47 x105 J/kg

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 71PQ

See similar textbooks

Similar questions

3.60 g of boiling water at 100.0°C was splashed onto a burn victim’s skin and cooled to 42.9°C on the 37.0°C skin. How much heat is given up by the water? Specific heat capacity of water is 4.186 J/(g·K).
A closed box is filled with dry ice at a temperature of -86.0 °C, while the outside temperature is 21.0 °C. The box is cubical, measuring 0.394 m on a side, and the thickness of the walls is 4.49 × 102 m. In one day, 3.76 × 106 J of heat is conducted through the six walls. Find the thermal conductivity of the material from which the box is made. Number Units
A thermally isolated container has 479 grams of water in it and a 376 gram plastic block. The water had an initial temperature of 352 K. The plastic had an initial temperature of 300 K. The plastic and water reach an equilibrium temperature of 342 K. Water has a specific heat of 4.182 J/(gram K). What is the specific heat of the plastic block in J/(gram K)?
2.4 g of water was evaporated from the surface of skin. How much heat, in the unit of kJ, was transferred from the body to the water to evaporate the water completely? The temperature of the skin is 33.5°C, and the latent heat of vaporization of water at 33.5°C is 43.6 kJ/mol. Molar mass of water is 18 g/mol
A 900 g copper rod at 20 degrees celcius has a length of 1.0000 m. The thermal expansion coefficient of copper is 17 x 10^-6 degrees celcius -1. The specific heat capacity is 0.385 kJ/kg degrees celcius. Question A: The copper is heated to 400 degrees celcius. What is the new length? Give the answer in meters and with 4 digits of precision after the decimal. Question B: The hot copper is then quenched by dunking the entire rod in a bucket with 10 kg of water at 20 degrees celcius. The specific heat capaciy of water is 4.18 kJ/kg degrees celcius. If none of the water turns to steam what is the equilibrium temp of the copper rod and water? Please give the answer in degrees celcius Question C: You measure the equilbrium temp and find that it is 24 degrees celcius. If the latent heat of vaporization of water is 2,260 kJ/kg, what mass of water turned to steam? Answer in grams
A rectangular block of aluminum has the following dimensions: 1m x 1m x m. The density of aluminum is 2700kg/m^3. The specific heat of aluminum is 0.9 J/g K. How much does the block of aluminum weigh in Newtons?
A granite wall has a thickness of 73.1 cm, an area of 5.94 m by 2.8 m and a thermal conductivity of 2.1 W/(m.C°). The temperature on one face of the wall is 2.03°C and 28.4°C on the opposite face. How much heat is transferred in one minute through the granite wall? O 75.6 kJ O 1.26 kJ 756 kJ O 1140 kJ
A 2.00 kg metal object requires 5020 J of heat to raise its temperature from 20.0°C to 40.0°C. What is the specific heat capacity of the metal? * 63.0 J/(kg. C°) 126 J/(kg. C°) 502 J/(kg. C°) 251 J/(kg. C°)
In an experiment to determine the specific heat of copper, a piece of copper weighing 50.06 is first heated to 100°C in steam. It is then immersed into water at 27.06°C.The water in the calorimeter weighs 100.08 g and the inner aluminum cap weighs 50.07 g. If the final temperature is 30.01°C, what is the specific heat of copper in CGS units given that the specific heat of aluminum is 0.22 cal/g- C? (Put only the value in three significant figures without the unit.) hanges to this answer Question 14 of 20
A Styrofoam box has a surface area of 0.84 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, and the outside temperature is 26°C. If it takes 8.0h for 5.0 kg of ice to melt in the container, determine the thermal conductivity of the Styrofoam.
An aluminum can is filled to the brim with a liquid. The can and the liquid are heated so their temperatures change by the same amount. The can's initial volume at 15 °C is 4.5×10- 4 m3 . The coefficient of volume expansion for aluminum is 69×10-6 °C-1 . When the can and the liquid are heated to 75 °C, 2.9×10-6 m3 of liquid spills over. What is the coefficient of volume expansion of the liquid?
A closed box is filled with dry ice at a temperature of -81.3 oC, while the outside temperature is 21.5 oC. The box is cubical, measuring 0.392 m on a side, and the thickness of the walls is 4.40 × 10-2 m. In one day, 3.93 × 106 J of heat is conducted through the six walls. Find the thermal conductivity of the material from which the box is made.