An aluminum (specific heat capacity = 0.90 J/g-°C) calorimeter of mass 100 g contains 268 g of water (specific heat capacity = 4.184 J/g-°C). The calorimeter and water are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper (specific heat = 0.386 J/g-°C) at 80°C. The other has the mass of 63 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. What is the specific heat capacity of the unknown metallic block in J/g-°C? Show your answer in TWO (2) decimal places. Do not include

An aluminum (specific heat capacity = 0.90 J/g-°C) calorimeter of mass 100 g contains 268 g of water (specific heat capacity = 4.184 J/g-°C). The calorimeter and water are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper (specific heat = 0.386 J/g-°C) at 80°C. The other has the mass of 63 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. What is the specific heat capacity of the unknown metallic block in J/g-°C? Show your answer in TWO (2) decimal places. Do not include

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

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An aluminum (specific heat capacity = 0.90 J/g-°C) calorimeter of mass 100 g contains 243 g of water (specific heat capacity = 4.184 J/g-°C). The calorimeter and water are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper (specific heat = 0.386 J/g-°C) at 80°C. The other has the mass of 78 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. What is the specific heat capacity of the unknown metallic block in J/g-°C? Show your answer in TWO (2) decimal places
Water is placed into an iron container along with an ice cube. They are thermally isolated.The iron container has a mass of 790. g and is initially at 72.0 degrees Celsius. The water has a mass of 220. g and is initially at 17.0 degrees Celsius. The ice cube has a mass of 80.0 g and is initially at -15.0 degrees Celsius.What is the heat required to raise the temperature of the ice to 0 degrees Celsius?
An aluminum (specific heat capacity = 0.90 J/g-°C) calorimeter of mass 100 g contains 261 g of water (specific heat capacity = 4.184 J/g-°C). The calorimeter and water are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper (specific heat = 0.386 J/g-°C) at 80°C. The other has the mass of 70 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. What is the specific heat capacity of the unknown metallic block in J/g °C? Answer in two decimal places.
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A 0.0725 kg ice cube at −30.0°C is placed in 0.557 kg of 35.0°C water in a very well insulated container. What is the final temperature? The latent heat of fusion of water is 79.8 kcal/kg, the specific heat of ice is 0.50 kcal/(kg · °C), and the specific heat of water is 1.00 kcal/(kg · °C).
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A 0.0550 kg ice cube at −30.0°C is placed in 0.577 kg of 35.0°C water in a very well insulated container. What is the final temperature? The latent heat of fusion of water is 79.8 kcal/kg, the specific heat of ice is 0.50 kcal/(kg · °C), and the specific heat of water is 1.00 kcal/(kg · °C). Answer in degrees Celcius.
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A 0.825 kg block of iron, with an average specific heat of 5.60 × 102 J/kg·K, is initially at a temperature of 254.0◦C. The block of iron is placed in a calorimeter with 16.4 g of water at 12.2◦C. What is the final thermal equilibrium temperature? If the answer if 100.0◦C, how much water is still in liquid form? Note: Treat the mass and heat capacity of the calorimeter as neglible.
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A closed box is filled with dry ice at a temperature of -80.9 oC, while the outside temperature is 28.4 oC. The box is cubical, measuring 0.379 m on a side, and the thickness of the walls is 4.41 × 10-2 m. In one day, 3.66 × 106 J of heat is conducted through the six walls. Find the thermal conductivity of the material from which the box is made.
A pot with a diameter of 20 cm is placed on the stove. The pot is made of stainless plate (k = 15 W / [m ° C]), and contains boiling water at 98 ° C. The bottom of the pan is 0.4 cm thick. The surface temperature in the bottom of the pan in contact with water is 105 ° C. a. If the heat transfer rate through the bottom of the pan is 450 W, determine the temperature of the outside surface of the pan that is exposed to the heating stove. = Answer ° C. b. Find the convective heat transfer coefficient of boiling water = Answer W / m2 ° C