Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 21, Problem 68PQ
(a)
To determine
The specific heat of unknown material.
(b)
To determine
The substance whose specific heat matches with the part (a) answer.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
The change in temperature of a substance when heated, depends on its specific heat capacity.
a. If the specific heat capacity of lead is 120 j/kgk, what is the heat energy required to raise the tempreture of 0.50 kg of a lead ball from 25°C to 45°C?
b. The 0.50 kg lead ball at 45°C is now dropped into a calorimeter with water at 20°C. if the final temperature of the ball-water system is 25°C, what is the mass of the water?
A copper cylinder has a mass of 0.0758 kg and a specific heat of 386 J/kg Co. It is heated to 80.5° C and then put in 0.0657 kg of unknown liquid whose temperature is 19.5° C. The final temperature of the mixture is 31.9° C. What is the specific heat of the unknown liquid?
a. 875 J/kg C
b. 1000 J/kg C
c. 900 J/kg C
d. 1745 J/kg C
A 50.0 g iron rod is heated to an unknown initial temperature. While cooling down to a temperature of 25.0 ºC, the rod releases 300.1 J of energy. The specific heat of iron is 0.452 J/g ºC and the density is 7.87 g/cm3.
If the mass of the iron were increased to 100. grams:
Group of answer choices
A. The density and specific heat would increase.
B. The density, specific heat and energy released would stay the same
C. The volume of the iron and the heat capacity would increase.
D. The density, specific heat and energy released would all increase.
Chapter 21 Solutions
Physics for Scientists and Engineers: Foundations and Connections
Ch. 21.2 - Incorrect. Heat is not contained in Texas. The...Ch. 21.3 - In each situation listed, an objects temperature...Ch. 21.4 - Prob. 21.3CECh. 21.4 - Prob. 21.4CECh. 21.7 - Prob. 21.5CECh. 21.7 - Prob. 21.6CECh. 21.7 - Prob. 21.7CECh. 21.7 - Prob. 21.8CECh. 21.7 - Prob. 21.9CECh. 21 - Prob. 1PQ
Ch. 21 - Prob. 2PQCh. 21 - You extend an impromptu invitation to a friend for...Ch. 21 - Prob. 4PQCh. 21 - Prob. 5PQCh. 21 - Prob. 6PQCh. 21 - Prob. 7PQCh. 21 - Prob. 8PQCh. 21 - Prob. 9PQCh. 21 - Prob. 10PQCh. 21 - Prob. 11PQCh. 21 - Prob. 12PQCh. 21 - Prob. 13PQCh. 21 - Prob. 14PQCh. 21 - Prob. 15PQCh. 21 - Prob. 16PQCh. 21 - Prob. 17PQCh. 21 - Prob. 18PQCh. 21 - Prob. 19PQCh. 21 - From Table 21.1, the specific heat of milk is 3.93...Ch. 21 - Prob. 21PQCh. 21 - Prob. 22PQCh. 21 - An ideal gas is confined to a cylindrical...Ch. 21 - Prob. 24PQCh. 21 - You place frozen soup (T = 17C) in a microwave...Ch. 21 - A 25-g ice cube at 0.0C is heated. After it first...Ch. 21 - Prob. 27PQCh. 21 - Prob. 28PQCh. 21 - Prob. 29PQCh. 21 - Prob. 30PQCh. 21 - Consider the latent heat of fusion and the latent...Ch. 21 - Prob. 32PQCh. 21 - Prob. 33PQCh. 21 - A thermodynamic cycle is shown in Figure P21.34...Ch. 21 - Prob. 35PQCh. 21 - Figure P21.36 shows a cyclic thermodynamic process...Ch. 21 - Figure P21.37 shows a PV diagram for a gas that is...Ch. 21 - Prob. 38PQCh. 21 - Prob. 39PQCh. 21 - Prob. 40PQCh. 21 - Prob. 41PQCh. 21 - Prob. 42PQCh. 21 - Prob. 43PQCh. 21 - Prob. 44PQCh. 21 - Figure P21.45 shows a cyclic process ABCDA for...Ch. 21 - Prob. 46PQCh. 21 - Prob. 47PQCh. 21 - Prob. 48PQCh. 21 - Prob. 49PQCh. 21 - Prob. 50PQCh. 21 - Prob. 51PQCh. 21 - Prob. 52PQCh. 21 - Prob. 53PQCh. 21 - Prob. 54PQCh. 21 - Prob. 55PQCh. 21 - You extend an impromptu invitation to a friend for...Ch. 21 - Prob. 57PQCh. 21 - Prob. 58PQCh. 21 - A lake is covered with ice that is 2.0 cm thick....Ch. 21 - A concerned mother is dressing her child for play...Ch. 21 - Prob. 61PQCh. 21 - Prob. 62PQCh. 21 - Prob. 63PQCh. 21 - Prob. 64PQCh. 21 - Prob. 65PQCh. 21 - Prob. 66PQCh. 21 - Prob. 67PQCh. 21 - Prob. 68PQCh. 21 - Three 100.0-g ice cubes initially at 0C are added...Ch. 21 - Prob. 70PQCh. 21 - Prob. 71PQCh. 21 - Prob. 72PQCh. 21 - Prob. 73PQCh. 21 - Prob. 74PQCh. 21 - Prob. 75PQCh. 21 - Prob. 76PQCh. 21 - Prob. 77PQCh. 21 - Prob. 78PQCh. 21 - How much faster does a cup of tea cool by 1C when...Ch. 21 - The PV diagram in Figure P21.80 shows a set of...Ch. 21 - Prob. 81PQCh. 21 - Prob. 82PQCh. 21 - Prob. 83PQCh. 21 - Prob. 84PQCh. 21 - Prob. 85PQ
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A glass windowpane in a home is 0.620 cm thick and has dimensions of 1.00 in 2.00 in. On a certain day, the temperature of the interior surface of the glass is 25.0C and the exterior surface temperature is 0C. (a) What is the rate at which energy is transferred by heat through the glass? (b) How much energy is transferred through the window in one day, assuming the temperatures on the surfaces remain constant?arrow_forward(a) What is the rate of heat conduction through the 3.00-cm-thick fur of a large animal having a 1.40m2 surface area? Assume that the animal’s skin temperature is 32.0C, that tile air temperature is 5.00C, and that fur has the same thermal conductivity as air. (b) What food intake will the animal need in one day to replace this heat transfer?arrow_forwardA person inhales and exhales 2.00 L of 37.0C air, evaporating 4.00102g of water from the lungs and breathing passages with each breath. (a) How much heat transfer occurs due to evaporation in each breath? (b) What is the rate of heat transfer in watts if the person is breathing at a moderate rate of 18.0 breaths per minute? (c) If the inhaled air had a temperature of 20.0C, what is the rate of heat transfer for warming the air? (d) Discuss the total rate of heat transfer as it relates to typical metabolic rates. Will this breathing be a major form of heat transfer for this person?arrow_forward
- (a) How much heat transfer is required to raise the temperature of a 0.750kg aluminum pot containing 2.50 kg of water from 30.0C to the boiling point and then boil away 0.750 kg of water? (b) How long does this take if the rate of heat transfer is 500 W 1watt=ljoule/second(lW=lJ/s) ?arrow_forwardIn 1986, a gargantuan iceberg broke away from the Ross Ice Shelf in Antarctica. It was approximately a rectangle 160 km long, 40.0 km wide, and 250 m thick. (a) What is the mass of this iceberg, given that the density of ice is 917kg/m3 ? (b) How much heat transfer (in joules) is needed to melt it? (c) How many years would it take sunlight alone to melt ice this thick, if the ice absorbs an average of 100W/m2, 12.00 h per day?arrow_forwardThe surface area of an unclothed person is 1.50 m2, and his skin temperature is 33.0C. The person is located in a dark room with a temperature of 20.0C, and the emissivity of the skin is e = 0.95. (a) At what rate is energy radiated by the body? (b) What is the significance of the sign of your answer?arrow_forward
- 5 kg of fish (Cp =3600 J/KgK) is placed in a storage box that has A=0,45 m2 and k=0,025 W/mK. The storage box wall is 2 cm. The fish temperature within the box is -1°C when it is packed. a) how much heat goes through the storage box wall if it is forgotten outsite in 20°C b)How long time does it take the fish to get to the same temperature as the surronding.arrow_forwardTwo 50-g ice cubes are placed into 0.2kg of water in a Styrofoam cup. The water is initially at a temperature of 25C and the ice is initially at a temperature of -15C. What is the final temperature of the drink? The average specific heat for ice between -15C and 0C is 2.05kJ/kgC. a. 12.35 deg C b. 10.6 deg C c. 20.2 deg C d. 15.5 deg C A tire with an inner volume of 0.025 m^3 is filled with air at a gauge pressure of 36psi. If the tire valve is opened to the atmosphere, what volume outside of the tire does the escaping air occupy? Some air remains within the tire occupying the original volume, but now that remaining air is at atmospheric pressure. Assume the temperature of the air does not change. a. 0.086 m^3 b. 0.096 m^3 c. 0.868 m^3 d. 0.673 m^3 The water passing over Victoria falls, located along the Zambezi River on the border of Zimbabwe and Zambia, drops about 105 m. How much internal energy is produced per kilogram as a result of the fall? a. 1030.05 b. 1260.05 c. 1180.05 d.…arrow_forwardTwo 50-g ice cubes are placed into 0.2kg of water in a Styrofoam cup. The water is initially at a temperature of 25C and the ice is initially at a temperature of -15C. What is the final temperature of the drink? The average specific heat for ice between -15C and 0C is 2.05kJ/kgC. a. 12.35 deg C b. 10.6 deg C c. 20.2 deg C d. 15.5 deg C A tire with an inner volume of 0.025 m^3 is filled with air at a gauge pressure of 36psi. If the tire valve is opened to the atmosphere, what volume outside of the tire does the escaping air occupy? Some air remains within the tire occupying the original volume, but now that remaining air is at atmospheric pressure. Assume the temperature of the air does not change. a. 0.086 m^3 b. 0.096 m^3 c. 0.868 m^3 d. 0.673 m^3 The water passing over Victoria falls, located along the Zambezi River on the border of Zimbabwe and Zambia, drops about 105 m. How much internal energy is produced per kilogram as a result of the fall? a. 1030.05 b. 1260.05 c.…arrow_forward
- 7. 400 g of boiling water (temperature 100°C, specific heat 4.2 J/K/g) are poured into an aluminum pan whose mass is 600 g and whose initial temperature is 20°C (the specific heat of aluminum is 0.9 J/K/g). After a short time, what is the temperature of the water? Explain. What simplifying assumptions did you have to make?arrow_forwardthe specific heat of aluminum is 900 j/kg-C°. a.) how much heat is needed to change the temperature of a 2.0kg object made of aluminum from 25° C to 35° C? b.) By how much will the temperature change if 10,000 J of heat are removed from it?arrow_forwardA scientist developed a new metal alloy for use in cookware. The alloy has several properties that still need to be determined. One such property is the specific heat. Based on the alloy's composition, the scientist hypothesizes that the specific heat will be close to 0.490 g.°C To determine the actual specific heat of the alloy, the scientist heats a 11.60 g piece of the alloy to 100.0 °C. He then places the J metal into an insulated container holding 50.00 g of water CH,0 = 4.184 c ) with an initial temperature of 23.5 °C. Assume heat loss to the surroundings is negligible. Calculate the final temperature of the water assuming the scientist's prediction is correct. Final water temperature= °C The measured final temperature of the water is 26.4 °C. Is the scientist's prediction the specific heat close to the true value? No. The prediction is too low. The measured value is over 0.540 r. g.°C J No. The prediction is too high. The measured value is below 0.440 g.°C J Yes. The prediction…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegeCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Thermodynamics: Crash Course Physics #23; Author: Crash Course;https://www.youtube.com/watch?v=4i1MUWJoI0U;License: Standard YouTube License, CC-BY