The rate of heat lost through insulation varies inversely as the thickness of the insulation. The rate of heat lost through a 3.5-inch thickness of insulation is 2200 Btu per hour. What is the rate of heat lost through a 5-inch thickness of the same insulation?

The rate of heat lost through insulation varies inversely as the thickness of the insulation. The rate of heat lost through a 3.5-inch thickness of insulation is 2200 Btu per hour. What is the rate of heat lost through a 5-inch thickness of the same insulation?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 16RQ: Whose law states that the volume of a gas varies inversely with the absolute pressure, as long as...

See similar textbooks

Related questions

Q: A unit that is generally used to express the insulating value of clothing is called clo. 1 clo is…

A: given: A unit that is generally used to express the insulating value of clothing is called clo. 1…

Q: Match each example of energy transfer with the correct type. 1. hot air vents near the floor 2. the…

Q: 7. The only mode of heat transfer that does not need a medium. 8. A mode of heat transfer that…

A: given = one word answer or fill in the blank

Q: Determine the consuming energy in (kw h) and the monthly cost for the building, if the electrical…

A: It is required to determine energy consumption and bill for month

Q: Pls. Answer thank you! An air-conditioning system is used to maintain a house at 65°F when the…

Q: Air at 27 Celsius degree receives heat at a constant volume until its temperature reaches 927…

A: Given: T1=27°CT2=927 °C

Q: 1. A thermometer reading 18"F is brought into a room where the temperature is 70'F, 1min later the…

Q: 300 kJ of heat flow by conduction from the outside to the inside cold storage in one hour. If the…

A: As per question, Heat flow by conduction from outside to the inside in one hour is 300KJ. Heat…

Q: A particular frost-free refrigerator uses about 745 kWh of electrical energy per year. Express this…

Q: At sea level, the weight of 1 kg mass in SI units is 9.81 N. The weight of 1 lbm mass in English…

A: Given Data: The weight of 1 kg mass in sea level is: 9.81 N The acceleration due to gravity at sea…

Q: The density of a fluid decreases by 5 percent at constant pressure when its temperature increases by…

Q: the specific heat (cp or cv) can also be understood as a "capacity or ability of a given material to…

A: Specific heat: The specific heat for any material is defined as, the amount of heat required to to…

Q: The elastic potential energy of a spring Ve depends on the spring constant k of the spring and the…

A: When spring stretches or compress it store energy. It is called potential energy

Q: odynamics The temperature gradient in a slab at steady conduction is -1000°C/m. The slab conducts…

A: Given:temperature gradient=dTdx=- 1000o C/mQ=250 W/m2

Q: An expandable container is filled with 25 in of air and is sitting in ice water that is 32 °F. The…

Q: An automobile cooling system holds 16 L of water. How much heat does it absorb if its temperature…

Q: A pressure gage 7.0 m above the bottom of a tank containing a liquid reads 64.94 kPa; another gage…

A: Soln:- h1 = 7m P1 = 64.94kpa h2= 4m P2 = 87.53 kpa ∆P = pg∆h (87.53-64.9)…

Q: 5. A logging firm in Isabela operates a diesel electric plant to supply its electric energy…

A: Given Data: The power produced, P=2700 kWh

Q: All specific physical quantities are .5 measured relative to the specific volume of the system. O…

A: all specific physical quantities are measured related to ....

Q: Find the amount of heat lost per hour through a square foot of building wall composed of 18-in.…

A: Given data, The schematic diagram of the composite wall is Thickness of metal lath and plaster, t1…

Q: The potential energy of a spring having a spring constant k stretched an amount x is

A: This question is based on the concept of spring. As per the guidelines of BARTLEBY we are subjected…

Q: A 3,500-seat auditorium is to be air-conditioned using window units 10 kW nominal value. Assume that…

Q: b. The ceiling of a certain room in a student's dormitory has an area of 200 ft’. It contains…

A: Heat is a form of energy which transfers from high temperature reservoir to the low temperature…

Q: 1.5. A refrigerator is used to cool 4 litres of soft drink from room temperature (25 °C) to 3 °C. If…

A: AS PER GUIDELINE I HAVE TO SOLVE ONLY FIRST QUESTION

Q: Exhaust gas leaves the exhaust pipe of a motor car with a pressure of 1.2 bar and a temperature of…

Q: Convert the following units: (a) 1,000 mm water pressure into psi. (b) Heat rate of 2,375 Kcal/KWh…

Q: According to first law of . thermodynamics work done by a system is equal to heat transferred by the…

A: There are 3 laws of thermodynamics: 1.Zeroth law of thermodynamics 2. First law of thermodynamics 3.…

Q: What is the value of a body's temperature in Fahrenheit (°F) if the temperature in -40°C.

Q: nit of thermal conductivity in S.I. units is (A) J/m² sec

A: Given: Thermal conductivity

Q: 1-An example of a physical property is A) the reaction of rubidium with water to form rubidium…

A: a) Rubidium metal reacts very rapidly with water to form a colourless basic solution of rubidium…

Q: 1- The newton's second law is (a) F= ma (b) M =Fd (c) N.M 2- The unit of mass is: (а) Kg (b) L (c) S

A: (a) F = ma (a) Kg (a) N/m2 (a) N (a) F.d

Q: We are walking outside in a very hot summer day. The climate is such that the wind velocity is zero…

A: There are three types of heat transfer possible 1. conduction 2. convection 3. Radiation…

Q: 1. Is it Worth IT? I am considering purchasing a cover for my swimming pool. I have estimated that…

Q: Which of the following statements are correct in the context of thermal conductivity? (Check all…

A: Thermal conductivity: It is a measure of heat flow through the material or it is a measure of how…

Q: Q2 Show if the following statements are (true) or (false) :/ 1- The value of thermal conductivity…

A: Dear student, According to the guidelines I am allowed to answer only three…

Q: 1. If k is the thermal conductivity, P is the density and C is the specific heat of a substance,…

A: Thermal diffusivity: Thermal diffusivity is a thermophysical property of any material which can be…

Q: A resistor is wired to a battery in a circuit and dissipates a power P1 as heat. A second battery,…

Q: A house has walls made out of steel with the following properties: Thickness Density Thermal…

A: Given, density , ρ = 7800 Kg/m3 thickness , x = 300mm thermal conductivity , k =50 W/m-k…

Q: The amount of heat required to change the temperature of a material from T1 to T2 is given by Q=…

A: Q= mCp(T2-T1) Mass of beef, m = 10 lb T1 = 40 F T2 = 130 F Cp = 0.8 BTU/lb.F Microwave oven output,…

Q: b. The ceiling of a certain room in a student's dormitory has an area of 200 ft". It contains…

A: Given: The area of the ceiling is, A=200 ft2. The R-value is 30 K·m2W. The temperature of the room…

Q: Thermodynamics 1.5 m^3 of water has a Force of 12 KN. Determine the specific weight of the water…

A: GivenV=1.5m3F=12Kng=9.51m/s2To findweight of water

Q: What is the mass density of a liquid whose specific weight is 7540 N/m^3? A. 976.7 kg/m^ /3 B.…

A: Specific weight, γ= 7540 N/m3 To find: Mass density of a liquid, ρ Note: Acceleration due to…

Q: 1. Energy 2. First law of Thermodynamics 3. Law of Conservation of Energy 4. Carnot Cycle 5. Closed…

A: Solution to first Three sub-parts as per our company policy.

Q: 1-3 A truncated cone 30 cm high is constructed of aluminum. The diameter at the top is 7.5 cm, and…

Q: The reactive force developed by a jet engine to push an airplane forward is called thrust, and the…

A: Given data Thrust developed by engine = 85,000 lbf

Q: 8.) While the pressure remains constant at 100 psia the volume of a system of air changes from 20…

Q: A 45cm cube of ice at 0C melts, and the resulting liquid water is placed in a spherical container…

A: Option a is correct.

Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A plane wall 15 cm thick has a thermal conductivity given by the relation k=2.0+0.0005T[W/mK] where T is in kelvin. If one surface of this wall is maintained at 150C and the other at 50C, determine the rate of heat transfer per square meter. Sketch the temperature distribution through the wall.
What are the important modes of heat transfer for a person sitting quietly in a room? What if the person is sitting near a roaring fireplace?
1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas gives both an air temperature and the wind-chill temperature. The air temperature is measured with a thermometer that is not affected by the wind. However, the rate of heat loss from the skier increases with wind velocity, and the wind-chill temperature is the temperature that would result in the same rate of heat loss in still air as occurs at the measured air temperature with the existing wind. Suppose that the inner temperature of a 3-mm-thick layer of skin with a thermal conductivity of 0.35 W/m K is and the air temperature is . Under calm ambient conditions the heat transfer coefficient at the outer skin surface is about (see Table 1.4), but in a 40-mph wind it increases to . (a) If frostbite occurs when the skin temperature drops to about , do you advise the skier to wear a face mask? (b) What is the skin temperature drop due to the wind?
How many Btu of heat can be produced by 4 kWh ofelectricity?
Discuss the modes of heat transfer that determine the equilibrium temperature of the space shuttle Endeavour when it is in orbit. What happens when it reenters the earths atmosphere?
1.77 Explain each in your own words. (a) What is the mode of heat transfer through a large steel plate that has its surfaces at specified temperatures? (b) What are the modes when the temperature on one surface of the steel plate is not specified, but the surface is exposed to a fluid at a specified temperature?
The rate of heat flow per unit length q/L through a hollow cylinder of inside radius ri and outside radius ro is q/L=(AkT)/(rori) where A=2/(rori)/ln(ro/ri). Determine the percent error in the rate of heat flow if the arithmetic mean area (ro+ri) is used instead of the logarithmic mean area A for ratios of outside-to-inside diameters (Do/Dj) of 1.5, 2.0, and 3.0. Plot the results.
The thermal conductivity of fibreglass insulation at 67F is 0.02 Btu/h ft F. What is its value in SI units?
1.71 The thermal conductivity of silver at 212°F is 238 Btu/h ft °F. What is the conductivity in SI units?
A manufacturer in the United States wants to sell a refrigeration system to a customer in Germany. The standard measure of refrigeration capacity used in the United States is the ton (T); a 1 T capacity means that the unit is capable of making about 1 T of ice per day or has a heat removal rate of 12,00 Btu/h. The capacity of the American system is to be guaranteed at 3 T. What is this guarantee in SI units?
How many watts of electrical energy are equal to 1 hp?
If a wall is made up of four different materials, all layered one on top of the other, how will the total R-value of the wall be determined? A. By the one material with the highest R-value B. By the one material with the lowest R-value C. By averaging the R-values of the materials D. By adding the R-values of the materials together