Water is boiled at sea level in a coffeemaker equipped with an immersion-type electric heating element. The coffeemaker contains 1L of water when full. Once boiling starts, it is observed that half of the water in the coffeemaker evaporates in 13 min. Determine the power rating of the electric heating element immersed in water. Also, determine how long it will take for this heater to raise the temperature of 1 L of cold water from 18°C to the boiling temperature.

Q: Q6. A shell-and-tube heat exchanger having one shell pass and four tube passes is used to heat 10…

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Q: Q1) a hot gas at 325°C flows through a metal pipe of 10 cm OD and 3 mm thick. It is insulated with a…

A: Given Data  To Find The insulation thicknessHeat loss per m length of the pipe

Q: If you want to boil water at 75 ° C instead of 100 ° C, which of the following do you need to do? A)…

A: Boiling is a phenomenon where the liquid is converted to a vapor form. The temperature required to…

Q: In distillation of kerosene, a steel pipeline (k = 47 W/m.°C) with inside surface temperature of…

A: Given that, The inside surface temperature of steel pipe T1 = 250oC  Inside diameter D1 = 8 cm =…

Q: 0.3 kg of gas is cooled from 1200C to 50°C at constant volume in a closed system. Calculate the heat…

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Q: A rectangular steel (k = 58.7 W/mK) fin 25 mm thick and 150 mm long is attached to a wall that is at…

A: Given: Thermal conductivity of steel, k = 58.7 W/m.K Thickness of fin, w = 25 mm ⇒0.025 m Length of…

Q: For transfusion of blood to a patient, it is decided to have a heat exchanger which heat the blood…

A: Given that TC1  =6 CTC2 = 37 CQ = 590 mlminCp  = 4180 KJ/kg      According to bartleby rule I can…

Q: When 120 kJ work is done on a closed system during a process, the total energy of the system…

A: Given that, the system is a closed system, where work is done on the system. Hence, work will be…

Q: temperature. * O True O False Nan

A: The above question is the question of the heat exchanger. There are many reasons that decrease the…

Q: -„ Energy Balances, Costs and Insulation - A 100 meter long section of a steam pipe with an outer…

A: The total resistance to heat transfer due to convection is calculated as follows:R = 1h(2πrL)h =…

Q: Identity the type of energy transferred to your body in each of the following as either energy,heat…

A: The transfer of energy to body takes place in the form of heat transfer, work done or by changing in…

Q: Q4. A 4.0-cm diameter sphere is maintained at 38°C and submerged in water at 15°C. Calculate the…

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Q: A radiator by steam is used to heat a closed room. Heat is lost from the room to the outside at a…

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Q: Example 6.2. Figure 6.7 shows a simplified flow diagram of a typical capillary viscometer (a device…

A: To find the viscosity of the fluid, we can use the Hagen-Poiseuille equation, which relates the flow…

Q: Use the on-line psychrometric chart (link in this module) to help solve this problem. The surface…

A: Given data: Surface temperature of the steel duct = 18 0C Dry bulb temperature of the surrounding…

Q: A bioengineer working at chemical company intends to dry an insoluble wet granular material in a pan…

A: Given Data : Dimensions of the pan = 0.6 m x 0.6 m x 0.03 m  The pan is insulated from the sides and…

Q: the

A: For calculating the area we need heat duty.Heat duty is calculated from mass flow rate * heat of…

Q: A large spherical storage tank, 2 m in diameter, is buried in the earth at a location where the…

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Q: A double pipe heat exchanger is used to cool a 15000 lb/hr air from 175°F to 75°F. Air enters on the…

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Q: None

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Q: True or False

A: Ans 1- True  2-  False ( because cooling and chilling rate are governed by any of form it can be…

Q: 7) What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A:

Q: A spherical furnace has an inside diameter of 6 ft and an outside diameter of 8 ft. The furnace…

A: Given: Inside diameter is 6 ft Outside diameter is 8 ft (r1) Shell of two different materials each…

Q: A 4 mm diameter tube, 40 cm long, closed at one end and standing vertically on its closed end, is…

A: Given, d= 4mm, L=40 cm, T=17oC, ρ=790 Kg/m3 System is uni-component diffusion…

Q: at a constant temperature, a gas gained an amount of heat (30 J). The gas expands and exerts a work…

A: This problem can be solve by the help of First law of thermodynamics. ΔU=Q+W ΔU is the change in…

Q: A refrigeration system is used to cool water in the evaporator a 6 kg/s of water from 22 ° C to 3°…

A: 1 TR=3.517 kW1 TR=3024 kcal1 kcal=4184 J1 Ton=3024×4184=12652416 J=12652.416 kJ

Q: Compare the heat given off by 1.0g of boiling water at 100 degrees celcius when it comes in contact…

A: When contact with skin 1 g of boiling water T=100℃→Changes to T=37℃ 1 g of Steam T=100℃→ Changes to…

Q: 15.0 g sample of aluminum, whose temperature is 4.0 °C, experiences an energy change of 189 J. The…

A: This question is based on the concept of Heat transfer. Data given: Substance used  = Aluminum Mass…

Q: Consider how the Beer Heater impacts multiple aspects of distillation columns used in the bourbon…

A: The Beer Heater is a device used in distillation columns to heat the mash and facilitate the…

Q: A thermometer reading 18 degrees Celsius is brought into a room where the temperature is 70 degrees…

A: Given data: Initial temperature of thermometer = 18 0C Temperature of room = 70 0C Temperature of…

Q: 3-41 Water is boiled at sea level (1 atm pressure) in a pan placed on top of a 3-kW electric burner…

A: At P = 1 atm Saturation temperature of water  = 100oC From steam table hfg = 2256.4 kj/kg Heat of…

Q: It is desired to raise the temperature of a given gas in a container as much as possible with the…

A: A thermodynamic system is a body of matter and/or radiation, confined in space by walls, with…

Q: Saturated ammonia vapor at 25°C condenses on the outside surface of 16 thin-walled tubes, 2.5…

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Q: 15 cm diameter with a density of 6000kg / m3 and specific heat of 600J / kg. ° C A stainless steel…

A: Given, Initial temperature of stainless steel ball, T0,b = 350 °C Final temperature of the ball,…

Q: Part_2 The container filled with 5 kg of water is cooled with the water-glycolsolutionwhich flows…

A:

Q: One side of a copper block 5 cm thick is maintained at 250°C. The other side is covered with a layer…

A:

Q: A thin metal plate 1 mx 1 m is placed on a rooftop. It receives radiant heat from the sun directly…

A: At steady state the rate of radiant heat input to the plate must be equal to the rate of heat loss…

Q: Hot water is transferred through a stainless steel pipe of 0.02m inside diameter and 4m length. The…

A: Given Data : Ti=950CTs=880CThickness (b) = 0.002mLength(L) = 4 m Di= 0.02mri=0.01mr0=0.01+0.002 =…

Q: A heat pump is required for a single-family 2-story, 3-person, 30 ft x 30 ft x 18 ft (L x W x H),…

A: It is given that a heat pump is required for a family. The following data is given:indoor…