How much heat is lost by 5 grams of a metal if the temperature changed from 90°C to 40°C? (c=3.95 J/gK) Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.
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A: length l = 1.9 mCross sectional area
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A: volume of oxygen = 20.8 liters = 0.0208 m3Initial temperature = 263 k Initial pressure = 2.77 atm…
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Q: FOLLOWING CONSTANTS ARE GIVEN FOR CALCULATIONS. Specific Heat of Water = 4186 J/kg °C, Specific Heat…
A: Heat received by iron ball = ms∆T
Q: A copper rod has a length of 2.0 m and a cross-sectional area of 3.3 × 10-4 m². One end of the rod…
A: Step 1:Given:Length of copper rod; l=2.0mCross sectional area of the rod; A=3.3×10−4m2Boiling point…
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Q: A container holds 91.2 liters of Oxygen at 268.5K and a pressure of 1.48 atmospheres. How much heat…
A: for Ideal gas pv =nRT n =pv/RT = 1.48*91.2 atmd/0.082*268.5 atm.lk./k = 6.13
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Q: A copper rod has a length of 1.0 m and a cross-sectional area of 3.4 x 104 m². One end of the rod is…
A: Given data: length l = 1.0 m Cross sectional area A=3.4×10-4 m2
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Q: How many joules of heat are required to melt 8.3 g of copper at a temperature of 1083°C?
A: mass of copper (m) = 8.3 grams Melting point of copper (T) = 1083oC Latent heat of fusion of copper…
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A: Given: Mass of ice, m = 2.2 kgTemperature of ice, T = -10°C Solution: Part a The heat…
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Q: 2. B:27.0 C:127.0 D:9.0 a. Take B °C, then convert it to Fahrenheit and Kelvin. b. Find the amount…
A: ** Specifically asked to solve (d) and (e) (d)
Q: You have 1.3 liters of water in an insulated container at 14.8 °C. You use an immersion heater to…
A: Given, Since 1 litre of weighs 1000 grams m = 1300 g T1 = 14.8°C T2 = ? Q = 20.2 J c (heat…
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- A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only through its bottom, which is copper and rests on a heating element. In two minutes, the mass of water boiled away is m = 2.5 kg. The radius of the pot bottom is R = 8.0 cm and the thickness is L = 1.0 mm. What is the temperature of the heating element in contact with the pot? TE = Number i UnitsA glass coffee pot has a 9.00 cm diameter circular bottom in contact with a heating element that keeps the coffee warm with a continuous 50.0-W heat input. (a) What is the temperature of the bottom of the pot, if it is 2.90 mm thick and the inside temperature is 67.8°C? The thermal conductivity of the pot is 0.84 J/(s · m · °C). *Answer in °C, please9. The rod below with the cross section surface area of 0.12 m² is laterally insulated. The rod has a thermal conduction constant of 100 W/m.°C. If the temperature along the rod changes according to the function T=ax²+b, develop a model to find the heat which is transferred through the rod? 1 X=0 T=70 °C Heat flow X=2m T=30 °C X
- The temperature of a 63 g sample of an unknown substance is raised from 28° C to 86° C when 390 calories of heat are added . What is the specific heat of the sample , in cal/g . C ? Enter your calculated value to the nearest .001 cal/g . C .450g of water is heated in a pot from 22°C to 62°C. The water has a specific heat capacity of 4190 J/kg*K. What is the amount of thermal energy/heat transferred to the water to increase the temperature?On a nice winter day at the South Pole, the temperature rises to −33°F. What is the approximate temperature in degrees Celsius? °C
- What is the ratio of the energy required to warm 125 g of Ice (0.0 \deg C) to body temperature (37 \deg C) to warming the same amount of water through the same temperature change? Answer format is the number Eice/Ewater = (2 significant figures) Latent Heat of Fusion of Water: 335, 000 J/kg Specific Heat Capacity of Water: 4186 J/kg/\deg C13. SolveNote: Round off your answer up to 3 decimal places. Input only the numerical value. Researchers are conducting a study to quantity the thermal conductivity of a composite material. A square box is made from 838 cm2 sheets of the composite insulating material that is 2.8 cm thick. A 201 W heater is placed inside the box. Sensors attached to the box show that the interior and exterior surfaces of one face have reached the constant temperatures of 81°C and 38°C. What is the thermal conductivity in W/m-K?