One end of a 40 cm metal rod 2.0 cm2 in cross section is in a steam bath while the other end is embedded in ice. It is observed that 13.3 grams of ice melted in 15 minutes from the heat conducted by the rod. What is the thermal conductivity of the rod.

Q: If the area, thickness and temperatures are same across the material. Justify which material will…

A: Thermal conductivity:   It is the rate of heat that can be transferred through a unit…

Q: A dormitory at a large university, built 50 years ago, has exterior walls constructed of L,…

A:

Q: The compartment below is used as a freezer of refrigerator compartment. Inner wall is at -15 C and…

A: Solution:

Q: der an alloy of two metals whose thermal conductivities are ki and Will the thermal conductivity of…

A: Thermal conductivity of the alloy is less than thermal conductivity of two metals.  Let, thermal…

Q: At the bottom of a large water tank there is a horizontally lying surface heater (diameter D = 200…

A: Heat transfer Heat transfer is the process in which heat is transferred from hot body to cold body…

Q: 20-m pipe has an outside diameter of 50 mm. Pipe is insulated with a layer of asbestos, then…

A:

Q: One face of a pure copper plate 3 cm thick is maintained at 400-C, and the other face is maintained…

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Q: A certain matenial 2.5 cm thick, with a cross-sectional area of 0.1 m, has one side maintained at…

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Q: Sheets of brass and steel, each of thickness 1 cm are placed in contact. The outer surface of brass…

A: The answer ie given below

Q: An engine cover is made from 1 cm thick stainless steel plate (k = 14 W/m K). Air on the inside of…

A: Given data as per the question Temperature of air in cylinder =3400 c heat transfer coefficient = 7…

Q: Two identical 7.5-cm cubes of copper at 425 and 90°C are brought into contact. Assuming that the…

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Q: method of measuring the Thermal Conductivity of an explanatory material,

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Q: A mechanic needs to remove a tight fitting pin of material A from a hole in a block made of material…

A: GIVEN TOPIC- Thermal expansion of metals                         A mechanic needs to remove a tight…

Q: he temperature trend in a multilayer material made of 2 slabs alluminum (λ1 and λ2) with air between…

A: We have to dtermine the temperture trend in the metal air sandwich

Q: Calculate the heat transfer per hour through a solid brick wall

A: Given data; a solid brick wall ;length (L)=6 mheight (h)=2.9 mthick =225mm=0.225…

Q: <, latent heat of melting = 398 kJ/kg) at a temperature of 30°C, a pulse with energy of 0.5 cussed…

A:

Q: The heat flux across a certain conductor is found to be 288 W m2. The temperature drop along the…

A: To find: The thermal conductivity of material. Given: The heat flux is q=288 Wm2. The temperature…

Q: A plane wall is having 160 mm thickness, ‘b’ mm width and its height is three times the width is…

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Q: What are good examples of materials used for cooking pans? Why would you use these kinds of…

A: Given data  To select the material of cooking pan's.

Q: Sheets os aluminum and steel, each 10 mm thick, are placed in contact. What is the temperature of…

A: Given Data T1=212°C T2=56°C Ratio of thermal conductivity of Aluminium and steel is 5

Q: What would be the length (L), such that elongating the fin by more than (L) will results in minimal…

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Q: Define the term linear coefficient of thermal expansion?

A: The coefficient of thermal expansion is defined as the material property by virtue of which a…

Q: ah 1deal mono-atomic gas 28. Inside a long cylinder, n trapped with the help of an airtight…

A: Given data Force constant k = 25N/m Distance Lo = 1m Rate of temperature increase is ro = 0.08 K/s…

Q: Experiment :LEE'S DISC Aim: To determine the thermal conductivity of a bad conductor by the Lee's…

A: Concept used: Heat flows from higher to lower temperature.

Q: wall, plastered on one face, has a thermal conductance of 0.36 m2 K/W, an inside surface

A: Handwriting.jpg

Q: Two long rods of the same diameter, one of brass(k= 85 W/mK) and the other of copper (k=375 W/mK)…

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Q: Following the Siebel's equation, what is the specific heat of a material with 85% moisture content?…

A: When we refer to anything specific, we use the term specific heat. The ratio of the amount of heat…

Q: One end of a 40 cm metal rod 2.0 cm2 in cross section is in a steam bath while the other end is…

A: Length of the bar,L=40 cm=0.4 m Area of cross-section, A=2 cm2=0.002 m2 Steam Temperature Ts=100 C…

Q: Mica sheet of 0.15 m diameter and has thickness of 0.005m is subjected to heater with a supply of…

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Q: What is(roughness)? what is its effect on heat transfer? Write one or two pages providing schemes or…

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Q: An oil storage tank has 20mm steel walls covered with 50mm of fiber glass insulation. if the oil…

A: Given:- t1=20mm t2=50mm T1=150°C T2=20°C hair=20 W/m2.°C To find: a) Rate of heat loss b) Heat loss…

Q: 2. One side of a copper block 4 cm thick is maintained at 175-C. The other side is covered with a…

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Q: explain temperature dependence of thermal conductivity including interaction mechanism

A: Thermodynamic conductivity changes with temperature. Depending on the conductor material, when…

Q: Define each term of its thermal conductivity in W/mK

A: Given data; For the following conditions thermal conductivity is;

Q: A layer of pulverized cork 152-mm thick is used as a layer of thermal insulation in a flat wall. The…

A: GIVEN :- thick : t=152 mm  The temperature of the cold side of the cork : TC= 4.4℃, The temperature…

Q: a) Steady and Transient state of heat transfer by the help of an example. b) If the area, thickness…

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Q: 6. The surface of a furnace wall is at a temperature of 1200°C. The outside wall temperature is…

A: Given, Ti=1200 0CTo=38 0C L1=15 cm=0.15 mL3=1 cm=0.01 m k1=1.73 W/m.Kk2=0.34 W/m.Kk3=44 W/m.K The…

Q: Calculate the heat transfer per hour through a solid brick wall 6 m long, 3 m high, and 240 mm…

A: find the heat transfer per hour.

Q: Derive an expression for heat conduction through a composite plane wall of n- layers.

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Q: One end of a solid cylindrical copper rod 0.2500 m long and 0.0350 m in radius is inserted inta a…

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Q: Why is the thermal conductivity of superinsulation orders of magnitude lower than the thermal…

A: (1) Superinsulation: Superinsulation is made by a number of layers of highly reflective sheets and…

Q: 5.) The bottom of a pan is made of a 4- mm-thick aluminum layer. In order to increase the rate of…

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Q: hermal conductivity of the layers and temperatures are shown conduction, answer the following…

A: ka=2W/m°Ckb=1W/m°Ckc=5W/m°Ckd=4W/m°CLet T1, T2, T3, T4 be the temperatures at the start of section…

Q: If temperature difference is doubled whereas thermal conductivity and wall thickness are halved,…

A: Heat conducted through wall is given by, Q = k A ∆T∆x Where, k = Thermal conductivity A  =Cross…

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.