Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 23, Problem 7PLA
A 250.0 g sample of metal shot is heated to a temperature of 98.0°C. It is placed in 100.0 g of water in a brass calorimeter cup with a brass stirrer. The total mass of the cup and the stirrer is 50.0 g. The initial temperature of the water, stirrer, and calorimeter cup is 20.0°C. The final equilibrium temperature of the system is 30.0°C. What is the specific heat of the metal sample? (The specific heat of brass is 0.092 cal/g-C°.) Show your work.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The exhaust duct from a heater has an inside diameter of 114.3 mm with ceramic walls 6.4 mm thick. The average k = 1.52 W/mK. Outside this wall, an insulation of rock wool 102 mm thick is installed. The thermal conductivity of the rock wool is k = 0.046+1.56*10-4T (°C) (W/mK). The inside surface temperature of the ceramic is T1= 588.7 K, and the outside surface temperature of the insulation is T3= 311 K. Calculate the heat loss for 1.5 m of duct and the interface temperature T2between the ceramic and the insulation.Assumesteady heat transfer.Hint: The correct value of km for insulation is that evaluated at the mean temperature of T2+T3/2. Hence, for the first trial assume a mean temperature of, say, 448 K. Then, calculate the heat loss and T2. Using this new T2, calculate a new mean temperature and proceed as before.
A well-insulated styrofoam bucket contains 146 g of ice at 0 °C. If 20 g of steam at 100 °C is injected into the bucket,what is the final equilibrium temperature of the system?(c water=4186 J/kg.°C, Lf= 3.35*10 ^5 J/kg, Lv=2.26*10^6 J/kg)
How much heat is removed from the body when 300-g ice from an ice pack melted and the water inside had a temperature of 25°C?
a. 3135 J
b. 31 350 J
c. 100 080 J
d. 131 430 J
In what conditions will vaporization best occur?
a. low kinetic energy, strong molecular forces, and large surface area
b. high kinetic energy, weak molecular forces, and large surface area
c. low kinetic energy, low molar mass, and small surface area
d. high kinetic energy, high molar mass, and large surface area
Assuming all substances are at room temperature, choose the liquid having a vapor pressure between higher
a. mercury and water
b. condensed milk and evaporated milk
c. acetone and honey
d. motor oil and gasolinens
Chapter 23 Solutions
Physics Laboratory Manual
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
- If the average kinetic energy of the molecules in an ideal gas initially at 20C doubles, what is the final temperature of the gas? (5.6) (a) 10C (b) 40C (c) 313C (d) 586Carrow_forwardA silver kettle weighs 1.07 kg. (The specific heat of silver is 0.235 J/g·°C) (a) What is the heat capacity (in J/°C) of the kettle? _____ J/°C (b) How much heat (in J) is required to increase the temperature of this kettle from 20.5°C to 98.7°C? _____ J (c) How much heat (in J) is required to heat this kettle from 20.5°C to 98.7°C if it contains 1.03 L of water (density of 0.997 g/mL and a specific heat of 4.18 J/g·°C across the temperature range)? _____ Jarrow_forwardThe initial temperature of an object is 30°C. If the internal energy of the object doubles, what is the new temperature of the object? a. 60°C b. 90°C c. 273°C d. 333°Carrow_forward
- Two blocks of metal are in contact with one another. The first block has mass 9.6 kg, specific heat 152 J/kg*K and temeperature 384 K. The second block has mass 8.3 kg, specific heat 922 J/kg*K and temeperature 244 K. What is the final temperature of the system?arrow_forwardA 880 cm X 1680 cm house is built on a 15.6 cm thick concrete slab of thermal conductivity 0.62 W/m.K.. If the ground temperature of the slab is 7.6ºC while the interior of the house is 21ºC. Calculate the following: a) The temperature difference in kelvin Answer for part 1 . b) The temperature gradient (ΔT/Δx) in kelvin/metre Answer for part 2 . c) The heat loss rate through the concrete slab in kilowatt Answer for part 3 .arrow_forwardA metal rod is 10 cm long and has a diameter of 2 cm one end is in contact with steam at 100 deg C while the other end contacts a block of ice at 0 deg C. The cylindrical surface of the rod is carefully insulated so heat flows only from one end to end. In a time of 20 minutes, 320 grams of ice melts. What is the thermal conductivity of the metal?arrow_forward
- A 1020 cm X 1120 cm house is built on a 15.2 cm thick concrete slab of thermal conductivity 0.64 W/m.K.. If the ground temperature of the slab is 7.3°C while the interior of the house is 21°C. (a*1)+ (b*1.5)+(c*2.5) = Calculate the following: a) The temperature difference in kelvin b) The temperature gradient (AT/Ax) in kelvin/metre c) The heat loss rate through the concrete slab in kilowattarrow_forwardA. 1 kg of ice at 0°C is mixed with 3 kg of steam at 100°C in a thermally isolated container and allowed to reach thermal equilibrium. What is the final temperature of the resulting mixture? The latent heat of fusion is 80 cal/g and the latent heat of vaporization is 540 cal/g. The specific heat of water is 1.00 cal/g · K. The specific heat of both ice and steam is 0.5 cal/g · K° B. A skater spins with constant angular acceleration from rest to a final angular speed of 10.0 rev/s in 6.00 seconds. How many revolutions did she make in the first 6.00 seconds? C. A particle exhibiting simple harmonic motion has a velocity v(t) = 200 sin(50t) where v is in m/s. Its maximum velocity in m/s is _______. D. A container has 0.50 kg of ice at 0.00°C. A tube connected from a boiler et 0.100 kg of steam at 100.0°C inside the container. What is the temperature of the system when it has reached equilibrium? Assume that no heat is absorbed by the container.arrow_forwardWater with a mass of mW = 0.400 kg and temperature of TW = 15.5°C is poured into an insulated bucket containing mI = 0.19 kg of ice at a temperature of TI = -15°C. Assume the specific heats of ice and water are constant at cI = 2.10×103 J/(kg⋅°C) and cW = 4.19×103 J/(kg⋅°C), respectively. The latent heat of fusion for water is Lf = 334×103 J/kg. Part (a) What is the final temperature of the mixture, in degrees Celsius? Tfinal = Part (b) Enter an expression for the mass of ice, in kilograms, that has melted when the mixture reaches its final temperature. mmelt = Part (c) Calculate how much ice, in kilograms, has melted when the mixture reaches its final temperature. mmelt =arrow_forward
- If 200 cm^3 of tea at 95°C is poured into a 150-g glass cup initially at 25°C, what will be the common final temperature T of the tea and cup when equilibrium is reached, assuming no heat flows to the surroundings? c(glass)= 840 J/kg·K c(water) = 4186 J/kg·Karrow_forwardThe thermal energy of 0.700 mol of a substance is increased by 0.900J. A. What is the temperature change if the system is a monatomic gas? (Hint: answer is not 103.09 K) B. What is the temperature change if the system is a diatomic gas? (Hint: answer is not 51.5 K) C. What is the temperature change if the system is a solid? (Hint: answer is not 9384.8 K)arrow_forwardEqual 0.4 kg masses of lead and tin at 60.0°C are placed in 1.0 kg of water at 20.0°C. cSn = 227 J/ kg ⋅°C ; cPb = 128 J/kg ⋅°C (a) What is the equilibrium temperature of the system? (b) If an alloy is made of half lead and half tin by mass, calculate specific heat of the alloy? (c) How many atoms of tin NSn are in 0.4 kg of tin, and how many atoms of lead NPb are in 0.4 kg of lead? (MSn = 118.7 g/mol ; MPb = 207.2 g/mol) (d)Divide the number NSn of tin atoms by the number NPb of lead atoms and compare this ratio with the specific heat of tin divided by the specific heat of lead. What conclusion can be drawn?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 Learning
An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Heat Transfer: Crash Course Engineering #14; Author: CrashCourse;https://www.youtube.com/watch?v=YK7G6l_K6sA;License: Standard YouTube License, CC-BY