Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term
9th Edition
ISBN: 9781305932302
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 20, Problem 15OQ
To determine
The time it takes by a
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A classroom has dimensions 8.00 m x 10.00 m x 3.00 m. A 1000 W electric space
heater is being used to warm the room from 5.00°C to 20.00°C on a cold morning. If
the density of air is 1.29 kg/m°, and the specific heat capacity of air is 1004 J/(kg-K),
how long will it take to heat the room? Assume no loss of thermal energy to the
surroundings.
A) 1.30 minutes
B) 241 minutes
C) 45.3 minutes
O D) 77.7 minutes
The heat capacity of air at room temperature and pressure is approximately 21 J×mol-1×K-1. a) How much energy is required to raise the temperature of a room dimensions 5.5 m x 6.5 m x 3.0 m by 10°C from room temperature (298.15 K) assuming ideal behavior? b) How long will it take a heater rated at 1.5 kW to achieve that increase if 1 W = 1 J×s-1 (assuming no loss)?
A steam pipe is covered with 1.25 cm thick insulating material of thermal conductivity 0.200 W / m. ° C. How much energy is lost every second when the steam is at 200 ° C and the surrounding air is at 20 ° C? The pipe has a circumference of 950 cm and a length of 68 m. Neglect losses through the ends of the pipe.
Chapter 20 Solutions
Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term
Ch. 20.2 - Prob. 20.1QQCh. 20.3 - Prob. 20.2QQCh. 20.6 - Prob. 20.3QQCh. 20.6 - Characterize the paths in Figure 19.12 as...Ch. 20.7 - Prob. 20.5QQCh. 20 - Prob. 1OQCh. 20 - Prob. 2OQCh. 20 - Prob. 3OQCh. 20 - Prob. 4OQCh. 20 - Prob. 5OQ
Ch. 20 - Prob. 6OQCh. 20 - Prob. 7OQCh. 20 - Prob. 8OQCh. 20 - Prob. 9OQCh. 20 - Prob. 10OQCh. 20 - Prob. 11OQCh. 20 - Prob. 12OQCh. 20 - Prob. 13OQCh. 20 - Prob. 14OQCh. 20 - Prob. 15OQCh. 20 - Prob. 1CQCh. 20 - Prob. 2CQCh. 20 - Prob. 3CQCh. 20 - Prob. 4CQCh. 20 - Prob. 5CQCh. 20 - Prob. 6CQCh. 20 - Prob. 7CQCh. 20 - Prob. 8CQCh. 20 - Prob. 9CQCh. 20 - Prob. 10CQCh. 20 - Pioneers stored fruits and vegetables in...Ch. 20 - Prob. 12CQCh. 20 - Prob. 1PCh. 20 - Prob. 2PCh. 20 - Prob. 3PCh. 20 - The highest waterfall in the world is the Salto...Ch. 20 - Prob. 5PCh. 20 - The temperature of a silver bar rises by 10.0C...Ch. 20 - Prob. 7PCh. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - If water with a mass mk at temperature Tk is...Ch. 20 - Prob. 11PCh. 20 - Prob. 12PCh. 20 - Prob. 13PCh. 20 - Prob. 14PCh. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - How much energy is required to change a 40.0-g ice...Ch. 20 - Prob. 19PCh. 20 - Prob. 20PCh. 20 - Prob. 22PCh. 20 - In an insulated vessel, 250 g of ice at 0C is...Ch. 20 - Prob. 24PCh. 20 - Prob. 25PCh. 20 - Prob. 26PCh. 20 - One mole of an ideal gas is warmed slowly so that...Ch. 20 - Prob. 28PCh. 20 - Prob. 29PCh. 20 - A gas is taken through the cyclic process...Ch. 20 - Prob. 31PCh. 20 - Prob. 32PCh. 20 - A thermodynamic system undergoes a process in...Ch. 20 - Prob. 34PCh. 20 - A 2.00-mol sample of helium gas initially at 300...Ch. 20 - (a) How much work is done on the steam when 1.00...Ch. 20 - Prob. 37PCh. 20 - Prob. 38PCh. 20 - A 1.00-kg block of aluminum is warmed at...Ch. 20 - Prob. 40PCh. 20 - Prob. 41PCh. 20 - Prob. 42PCh. 20 - Prob. 43PCh. 20 - A concrete slab is 12.0 cm thick and has an area...Ch. 20 - Prob. 45PCh. 20 - Prob. 46PCh. 20 - Prob. 47PCh. 20 - Prob. 48PCh. 20 - Two lightbulbs have cylindrical filaments much...Ch. 20 - Prob. 50PCh. 20 - Prob. 51PCh. 20 - Prob. 52PCh. 20 - (a) Calculate the R-value of a thermal window made...Ch. 20 - Prob. 54PCh. 20 - Prob. 55PCh. 20 - Prob. 56PCh. 20 - Prob. 57PCh. 20 - Prob. 58APCh. 20 - Gas in a container is at a pressure of 1.50 atm...Ch. 20 - Prob. 60APCh. 20 - Prob. 61APCh. 20 - Prob. 62APCh. 20 - Prob. 63APCh. 20 - Prob. 64APCh. 20 - Review. Following a collision between a large...Ch. 20 - An ice-cube tray is filled with 75.0 g of water....Ch. 20 - Prob. 67APCh. 20 - Prob. 68APCh. 20 - An iron plate is held against an iron wheel so...Ch. 20 - Prob. 70APCh. 20 - Prob. 71APCh. 20 - One mole of an ideal gas is contained in a...Ch. 20 - Prob. 73APCh. 20 - Prob. 74APCh. 20 - Prob. 75APCh. 20 - Prob. 76APCh. 20 - Prob. 77APCh. 20 - Prob. 78APCh. 20 - Prob. 79APCh. 20 - Prob. 80APCh. 20 - Prob. 81CPCh. 20 - Prob. 82CPCh. 20 - Prob. 83CPCh. 20 - Prob. 84CP
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
- In 1993, the U.S. government instituted a requirement that all room air conditioners sold in the United States must have an energy efficiency ratio (EER) of 10 or higher. The EER is defined as the ratio of the cooling capacity of the air conditioner, measured in British thermal units per hour, or Btu/h, to its electrical power requirement in watts. (a) Convert the EER of 10.0 to dimensionless form, using the conversion 1 Btu = 1 055 J. (b) What is the appropriate name for this dimensionless quantity? (c) In the 1970s, it was common to find room air conditioners with EERs of 5 or lower. State how the operating costs compare for 10 000-Btu/h air conditioners with EERs of 5.00 and 10.0. Assume each air conditioner operates for 1 500 h during the summer in a city where electricity costs 17.0 per kWh.arrow_forwardIf a gas is compressed isothermally, which of the following statements is true? (a) Energy is transferred into the gas by heat. (b) No work is done on the gas. (c) The temperature of the gas increases. (d) The internal energy of the gas remains constant. (e) None of those statements is true.arrow_forwardLiquid helium has a very low boiling point, 4.2 K, as well as a very low latent heat of vaporization, 2.00 × 104 J/kg. If energy is transferred to a container of liquid helium at the boiling point from an immersed electric heater at a rate of 10.0 W, how long does it take to boil away 2.00 kg of the liquid?arrow_forward
- A “solar cooker” consists of a curved reflecting mirror that focuses sunlight onto the object to be heated (Fig. P11.69). The solar power per unit area reaching the Earth at the location of a 0.50-m-diameter solar cooker is 600. W/m2. Assuming 50% of the incident energy is converted to thermal energy, how long would it take to boil away 1.0 L of water initially at 20.°C? (Neglect the specific heat of the container.)arrow_forwardAn ice-cube tray is filled with 75.0 g of water. After the filled tray reaches an equilibrium temperature 20.0°C, it is placed in a freezer set at -8.00°C to make ice cubes. (a) Describe the processes that occur as energy is being removed from the water to make ice. (b) Calculate the energy that must be removed from the water to make ice cubes at -8.00°C.arrow_forwardConsider the following data from the Electrical Equivalent of Heat Lab. Data for the Electrical Equivalent of Heat V 11.5 V M₁ 85.0 g Mjw 290.0 g Answer the following questions based on this data. TR 23° C O 5.08 Find the electrical energy delivered to the system (in units of 104 J). O 2.72 O 4.17 O 3.98 O 1.39 O 2.87 O 3.25 O 5.93 O 6.35 Find the heat transferred to the water and the EEF jar (in units of 103 calories). Note: Be sure to take into account the correction parameter which accounts for the jar absorbing as much heat as 23 g of water. O 8.91 O 6.90% 5.22% I 2.10 A O 4.69% t₁ Os O 9.78% Calculate the resulting conversion factor between joules and calories. Find the percent difference compared to the known value of 4.186 joules / calorie. O 7.12% tf 18.8 min T₁ 10° C Tf 36° Carrow_forward
- An electric heater transfers 8.90 ✕ 105 J into a block of ice with a mass of 2.16 kg and an initial temperature of 0°C. (a) How much of the energy (in J) supplied by the heater goes into melting all the ice into liquid water? (Enter your answer to at least three significant figures.) J (b) How much of the energy (in J) supplied by the heater goes into raising the temperature of the liquid water? (Enter your answer to at least three significant figures.) J (c) What is the final temperature of the liquid water in degrees Celsius? °Carrow_forwardA sealed container holding 0.500 kg of liquid nitrogen at its boiling point of 77.3 K is placed in a large room at 21.0°C. Energy is transferred from the room to the nitrogen as the liquid nitrogen boils into a gas and then warms to the room’s temperature. (a) Assuming the room’s temperature remains essentially unchanged at 21.0°C, calculate the energy transferred from the room to the nitrogen. (b) Estimate the change in entropy of the room. Liquid nitrogen has a latent heat of vaporization of 2.01 x 105 J/kg. The specific heat of N2 gas at constant pressure is c(N2) = 1.04 x 103 J/kg · K .arrow_forwardThe specific heat of water is 4186 J/kg c°. How much does the internal energy of 200 g of water change as it is heated from 20°c to 30°c? Assume the volume is constant.arrow_forward
- A solar panel receives energy from the Sun at a rate of 5.0 kW.Thermal energy is transferred from the solar panel to water with an efficiency of 20%.Coldwater of mass 15 kg enters the solar panel every hour.The specific heat capacity of water is 4200 J/(kg °C).Calculate the temperature increase of the water.arrow_forwardSix kilograms of liquid water at 0° C is put into the freezer compartment of a Carnot refrigerator. The temperature of the compartment is -15.3° C, and the temperature of the kitchen is 24.9° C. If the cost of electrical energy is ten cents per kilowatt · hour, how much does it cost to make two kilograms of ice at 0° C?arrow_forwardCompressed air can be pumped underground into huge caverns as a form of energy storage. The volume of a cavern is 6.3 x 105 m³, 5 and the pressure of the air in it is 7.4 × 106 Pa. Assume that air is a diatomic ideal gas whose internal energy U is given by U = nRT. If one home uses 30.0 kWh of energy per day, how many homes could this internal energy serve for one day?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
The Second Law of Thermodynamics: Heat Flow, Entropy, and Microstates; Author: Professor Dave Explains;https://www.youtube.com/watch?v=MrwW4w2nAMc;License: Standard YouTube License, CC-BY