Q: How much in peso is the cost of boiling 13.2 L of water from 22 °C using a heavy cook pot with mass…
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Q: A 755-g sample of water is heated from 5.50°C to 98.40 °C. Calculate the amount of heat absorbed (in…
A: The amount of heat absorbed by the water can be determined as, Here, m, cw, Ti and Tf represent…
Q: A Styrofoam box has a surface area of 0.80 m2 and a wall thickness of 2.0 cm. The temperature of the…
A: Given:area = 0.80 sq mthickness = 2 cmtemperature = 5o Ctime taken = 8 hmass = 5 kg
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Q: A 142 cm long aluminum rod (thermal conductivity = 205 W/m-K) has a cross-section area of 3 cm2. If…
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Q: A hot steel plate with a surface area of 2.43 m2 and a constant surface temperature of 168°C is…
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Q: 2.5 kg of water (c = 4190 J/(kg⋅K)) is heated from T1 = 14° C to T2 = 24° C. Input an expression…
A: Given Mass of water m1 = 2.5kg Specific heat of water c = 4190 J/kg-k T1 =14c = 287k T2 =24c = 297k…
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Q: A 900 g copper rod at 20 degrees celcius has a length of 1.0000 m. The thermal expansion coefficient…
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Q: A Styrofoam box has a surface area of 0.9 m² and a wall thickness of 1.8 cm. The temperature of the…
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Q: A hot steel plate with a surface area of 1.52 m2 and a constant surface temperature of 166°C is…
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Q: What is the rate of heat transfer in J/s through the body's skin and the fat layer just beneath its…
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A 158 cm long aluminum rod (thermal conductivity = 205 W/m-K) has a cross-section area of 1 cm2. If one end is kept in a steam bath and the other end in an ice-water mixture, what is the quantity of heat (in Joules)
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- A 900 g copper rod at 20 degrees celcius has a length of 1.0000 m. The thermal expansion coefficient of copper is 17 x 10^-6 degrees celcius -1. The specific heat capacity is 0.385 kJ/kg degrees celcius. Question A: The copper is heated to 400 degrees celcius. What is the new length? Give the answer in meters and with 4 digits of precision after the decimal. Question B: The hot copper is then quenched by dunking the entire rod in a bucket with 10 kg of water at 20 degrees celcius. The specific heat capaciy of water is 4.18 kJ/kg degrees celcius. If none of the water turns to steam what is the equilibrium temp of the copper rod and water? Please give the answer in degrees celcius Question C: You measure the equilbrium temp and find that it is 24 degrees celcius. If the latent heat of vaporization of water is 2,260 kJ/kg, what mass of water turned to steam? Answer in gramsA hot steel plate with a surface area of 1.52 m2 and a constant surface temperature of 166°C is exposed to ambient air at 22°C. If the convection heat transfer coefficient is 15.9 W/m². K, what is the rate of heat transfer (in W) from the plate to the air [round your final answer to zero decimal places]? T. S Air, T, 00An engineer who is working on the heat transfer analysis of a house in English units needs the convection heat transfer coefficient on the outer surface of the house. But the only value he can find from his handbooks is 22 W/m2·K, which is in SI units. The engineer does not have a direct conversion factor between the two unit systems for the convection heat transfer coefficient. Using the conversion factors between W and Btu/h, m and ft, and °C and °F, express the given convection heat transfer coefficient in Btu/h·ft2·°F.
- A 142 cm long aluminum rod (thermal conductivity = 205 W/m-K) has a cross-section area of 3 cm2. If one end is kept in a steam bath and the other end in an ice-water mixture, what is the quantity of heat (in Joules) conducted by the rod in 1 days?A window has dimensions of 1.7 m by 2.75 m and is made of glass 5.5 mm thick. On a winter day, the outside temperature is 25° C while the inside temperature is a comfortable at 16° C. (k of glass =0.185W/m.K) Calculate the following (a): the area of the window in square metres : the temperature gradient (ΔT/Δx)in kelvin/metre : the rate of heat lost through the window by conduction in watts/metre.kelvin :An electronics device generates 30.5 W of heat energy during normal operation. The heat is dissipated from the top surface of the device to ambient air at 23°C. If the top surface area is 0.158 m2 and the convection heat transfer coefficient is 7.838 W/m2. K, what will be the surface temperature (in °C) of the device [round your final answer to one decimal place]? Air, T. T 00 S
- A Styrofoam box has a surface area of 0.9 m2 and a wall thickness of 1.8 cm. The temperature of the inner surface is 6.6°C, and the outside temperature is 24°C. If it takes 7.7 h for 8 kg of ice to melt in the container, determine the thermal conductivity of the Styrofoam. Final answer in three decimal places. For water, Lf = 334 000 J/ kg.What is the rate of heat transfer in J/s through the body's skin and the fat layer just beneath its surface? Treat the skin and fat as a single layer that is 1.20 cm thick. Assume the temperature of the inner surface of the layer corresponds to internal body temperature, or 36.7 °C, and the temperature of the outer surface of the layer corresponds to skin temperature, or 34.0 °C. Take the total surface area of the layer to be 1.50 m² and use a value of 0.413 W/(m-C°) for the average thermal conductivity of the layer. Number UnitsHow much in peso is the cost of boiling 13.2 L of water from 22 °C using a heavy cook pot with mass of 3.27 kg and with specific heat capacity of 512 J/Kg-C° if the cost of energy is 14.60 pesos per kilowatt-hour? NOTE: Specific heat capacity of water is 4186 J/Kg- C° . Round off answer up to 2 decimal places. Input only the numerical value of the answer.
- the second pic is the available units to use in the answer2.5 kg of water (c = 4190 J/(kg⋅K)) is heated from T1 = 14° C to T2 = 24° C. Input an expression for the heat transferred to the water, Q. Calculate the value of heat transferred to the water Q in joules, using the expression from part (a). To the heated water 0.5 kg of water at T3 = 20° C is added. What is the final temperature of the water, in kelvin?A 755-g sample of water is heated from 5.50°C to 98.40 °C. Calculate the amount of heat absorbed (in kilojoules) by the water. Specific heat of water = 4.184 J/g-°C . Your answer must be 4 sig figure and in kJ