9.1 kg of copper sits at a temperature of 72 F. How much heat is required to raise it's temperature to 723 F? The specific heat of copper is 385J/kg-C.
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9.1 kg of copper sits at a temperature of 72 F. How much heat is required to raise it's temperature to 723 F? The specific heat of copper is 385J/kg-C.
answer in exponential form please
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- 9.3 kg of copper sits at a temperature of 38 f. how much heat is required to raise the temperature to 908 f? the specific heat of copper is 385 j/ kg -c. answer in exponential form.What mass of steam at 100° C must be added to 1.00 kg of ice at 0°C to yield liquid water at 20 °C? The heat of fusion for water is 333 kJ/kg , the specific heat is 4186 J/kg · C° , the heat of vaporization is 2260 kJ/kg. Express your answer to two significant figures and include the appropriate units. HÀ ? Value Units m =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
- 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 gramsAn 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 SIf the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C?. Hint: To get the ΔT (Change in temperature), get the difference between final temperature (Tf) and initial temperature (Ti). [ΔT = Tf – Ti ]
- There is a .32 kg block of silver that is 21 °C. If silver's melting point is 961°C, how much thermal energy would a scientist need to melt this block of silver? (Hf = 111 kJ/kg). Hf is the heat of fusion of silver! Solve, assuming that the specific heat of silver is .24 J/g*degC, or 235 J/kg*K.A copper calorimeter whose mass is 250 g contains 700 g of water at 250C. When 25 g of a certain metal at 980C is immersed in the water, the resulting temperature is 300C. What is the specific heat of the metal? The specific heat of copper is 0.093 cal/g C0.How much energy is required to change a 31 g ice cube from ice at -11 °C to steam at 112°C? The specific heat of ice is 2090 J/kg °C, the specific heat of water is 4186 J/kg °C and the specific heat of steam is 2010 J/kg °C. The heat of fusion of water is 333000 J/kg and the heat of vaporization is 2.26 × 106 J/kg. Answer in units of J.
- A 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, 00A ceramic container used for melting metals (called a crucible) contains 1.30 kg of a molten metal. The liquid metal cools until it reaches its melting point of 1,749°C. A scientist then measures that 2.99 ✕ 104 J of heat is transferred out of the metal before it completely solidifies. What is the latent heat of fusion of this metal, in J/g? (Be careful with units!)You have 54 g of steam at 100°C. How much heat must be removed to change it to 54 g of water at 20°C? The specific heat of water is 4180 J/kg -° C and its latent heat of vaporization is 2.26 x 106 J/kg. Answer in units of J.