A 6000 Kg mass of water is brought to a uniform temperature of 98 ˚C in a heavily insulated tank using an electrical heater. The initial uniform temperature of the water is 20 ˚C. The heat loss through the insulation is 5(108) J as the mass of water is heated. The specific heat of water is 4,120 J/(Kg K). Calculate the electrical energy required to perform this process.

Q: The inner and outer surfaces of a 25-cm-thick wall are at 27 oC and 45 oC, respectively. The outer…

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Q: It is a hot day in Atlanta and you and your friends bought an ice cream maker. The unit consists of…

A: To obtain the solution of the above question, we will apply the 1st law of thermodynamics and is…

Q: This method of heat transfer doesn't require any media for heat to travel. Convection method…

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Q: As shown in the figure, an exterior wall of a building has an average thermal conductivity of 0.32…

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Q: Inner radius 15 cm, outer radius 20 cm and k = 15 W / m ∙ Consider a pipe with oC. Heat transfer…

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Q: The thermal contact conductance hc at the interface is 11,000 W/m2·°C. Determine the thickness of…

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Q: A solar collector meets the hot water needs of a family for 7 months, excluding 5 months of the…

A: Period of time in which hot water is needed = 7 months Average temperature of hot water = 55°C…

Q: As shown in the figure, an exterior wall of a building has an average thermal conductivity of 0.32…

A: Givenk=0.32Btu/h ft  oRL=5inT1=70oFT2=?To=20oFh=5.1Btu/h ft2 Ro

Q: A solar radiant heat flux of 700 W/m2 is absorbed in a metal plate that is perfectly insulated on…

A: Given : solar radiant heat flux, q' = 700 w/m2 convection heat transfer coefficient , h = 11 w/m2.…

Q: costs Tom and Jerry are each trying to sell you a heat engine. Both engines work between high and…

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Q: Calculate the quantity of heat to be transderred in BTU to 2.81 kg of brass to raise its remperature…

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Q: As shown in the figure, an exterior wall of a building has an average thermal conductivity of 0.32…

A: Given:Thermal conductivity of the wall, k=0.32 Btu/h.ft.°RThickness of wall, L=8…

Q: In a cold country, an apartment needs 48 kWh of heat to maintain their internal temperature at 27°…

A: The heat required to maintain the internal temperature is supplied due to the temperature difference…

Q: Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1590 kJ is…

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Q: Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1605 kJ is…

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Q: Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1624 kJ is…

A: Given: T1=24°CT2=101°CQ=1624 kJ/kgρ=1015 kg/m3c=4.6 J/kg°K

Q: Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1527 kJ is…

A: Given:Q=1527 KJ/kgT1=27 CT2=101 Cρ=1014 kg/m3c=3.3 KJ/kg.K

Q: PR and As shown In the figure, an exterior wall of a bullding nas an average thermal conductivity of…

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Q: a. Find the overall heat transfer coefficient = Answer W / m² ° C. b. Heat transfer rate per meter…

A: The temperature of steam flowing inside the pipe is, Ti=160 °C. Inner radius of the pipe is, r1=50…

Q: Consider a pipe with an inner radius of 15 cm, an outer radius of 20 cm, and k = 15 W / m ∙ oC. The…

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Q: A small electric immersion heater is used to heat 82 g of water for a cup of instant coffee. The…

A: Given data: m=82 gPower=72 WattTi=23°CTF=100°CC=4186 J/kg.K Need to determine the time required to…

Q: Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1526 kJ is…

A:

Q: How do I set up equations for a mass connected to a wall by a spring and a damping pot, which then…

A: Consider the schematic diagram of the mass connected with spring and damping pot. The block is…

Q: b. A slab of stone of area (3600 + R) cm² and thickness 10 cm is exposed on the lower surface to…

A: Draw diagram of slab for better understanding

Q: Two large containers A and B of the same size are filled with different fluids. The fluids in…

A: Answer: The metal bar will take 7.16683 min to reach 99.6℃ from the start of the process.

Q: A radioactive sphere of 20-cm diameter generates heat at the rate of 300 W. It is cooled by placing…

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Q: As shown in the figure, an exterior wall of a building has an average thermal conductivity of 0.32…

A: Given:Thermal conductivity of wall, k=0.32 Btu/h.ft.°RThickness, L=5 inT1=70°FTo=30°FConvective heat…

Q: SANAE IV, a research station of The South African National Antarctic Programme (SANAP), is located…

A: Given: The temperature of science lab, T2 = 307.8 K The heat supplied to lab, Q2 = 17360 J The work…

Q: Compare an SHS with a solid storage material and an LHS with a PCM storage material. The thermal…

A: Given, Thermal capacity of energy storage system:-Q=600KWhQ=600×3600Q=2160000KJFor SHS,Density of…

Q: The eyclic device can be

A: Given data; T1=1000 KT2=500 KT3=300 KQ1=Q2=Q3=100 KJ=50 KJ=60 KJ respectiveley

Q: In a room (6*5*4 m), if you have a thermal mass in a concrete floor with a thickness of 15 cm…

A: Given, Specification of the room, V = 6*5*4 = 120 m3. Thickness of concrete, t = cm Density of…

Q: Steam at 140 ° C flows in a pipe having an inner radius of 50 mm and an outer radius of 55 mm. The…

A: Steam temperature, Ti=140oC Inner radius of pipe, ri=50mm=0.05m Outer radius of pipe, ro=55mm=0.055m…

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.