15 The surface temperature on Venus may approach 735 K. What is this temperature in degrees Celsius? type your answer... The temperature on Mercury may drop to -263° F at night. What is this temperature in degrees Celsius? type your answer... Spointe I
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- Can you answer the temperature problem according to the previous one?A sphere of radius 0.50 m, temperature 25.0 °C, and emissivity 0.850 is located in an environment of temperature 75.0 °C. a. At what rate does the sphere emit thermal radiation? b. What rate does the sphere absorb thermal radiation? c. What is the sphere’s net rate of energy exchange?Consider an ideal gas with an absolute temperature of ?1.T1. To what temperature would the gas need to be heated to double its pressure? Express the answer in terms of ?1.T1. ?2= Consider an ideal gas with a volume of ?1.V1. To what volume would the gas need to be compressed to double its pressure? Express the answer in terms of ?1.V1. ?2=V2=
- nent 7 Heat transfer, rev 1, 2022.xlsx (1.58 MB) Page 2. Styrofoam, used for insulation, has a thickness of 25.0 mm. The temperature on one side of the styrofoam wall is 12.0 °C and 22.5 3. °C on the other side. How much heat (J) is transferred in one hour through each square meter of the styrofoam wall to 3 sig figs? In real construction there will be bricks or concrete along with the styrofaom as you can see in the picture. Only consider the styrofoam here.a. Compute the specific heat capacity at constant volume of nitrogen (N2) gas. The molar mass of N2 is 28.0 g/mol. b. You warm 1.15 kg of water at a constant 1L volume from 20∘C to 30∘C in a kettle. For the same amount of heat, how many kilograms of 20∘C air would you be able to warm to 30∘C? Make the simplifying assumption that air is 100% N2. What volume would this air occupy at 20∘C and a pressure of 1 atm ?(a) In the deep space between galaxies, me density of atoms is as low as 106atoms/m3, and me temperature is a frigid 2.7 K. What is me pressure? (b) What volume (in m3) is occupied by 1 mol of gas? (c) If this volume is a cube, what is the length of its sides in kilometers?
- Given: 500 grams of air at STP. (STP or Standard Temperature Pressure; where in T = 0°C, Pabs = 1 atm). Determine the following a. Volume of the air in cubic meters b. If 20 kJ of heat is added at constant pressure determine the final temperature in CIf the temperature of the surface of the object is 649.1 K, then calculate its value in °F. a. 1627.78 b. 1200.38 c. 708.98 d. 376.10In lab we determined the specific heat of several cubes of metal. One of those cubes was lead which had a specific heat of 0.13 J/g oC. Let’s imagine a thought experiment where we drop a 100 g piece of lead off the roof of a 10 meter tall building. A. How much will the temperature rise for the lead when it hits the ground? B. How much potential energy does the lead have at the top of the roof? C. How much kinetic energy does the lead have just prior to striking the ground? Assume that the mechanical energy is conserved and transferred to the lead to be thought of as heat, Q. Using Q = mc(T-To), solve for (T-To), the change in temperature.
- Q3. Given the models to estimate the earth and atmosphere temperature, determine the temperature on the surface of an imaginary planet and its atmosphere, given this imaginary planet is exact same size as the earth and has exact same atmosphere as earth, but is a) 125 million km away from the sun, and b) 175 million km away from sun. All 6 model input parameters remain the same as the models used for earth and atmosphere.Please, I need help with the 3 questions. I have tried solving them but the result is not consistent with other things im finding online... How do I even calculate the net on the first question...1)Consider a domestic hot water tank that has a total surface area of A = 2.9 m2. The tank and its contents are maintained at a constant temperature of 58 °C by an electric immersion heater and the temperature of the surroundings outside the tank is 19°C. The emissivity of the tank is ε = 0.76. Calculate the net power radiated by the tank (i.e. the difference between the power radiated and the power absorbed). Give your final answer to an appropriate number of significant figures. 2)The tank is now completely surrounded by an insulating layer of rock mineral wool of thickness l = 0.115 m. The thermal conductivity of rock mineral wool is k = 0.032 W m−1 K−1.You may assume that the surface area of the layer of rock mineral wool is the same as the surface area of the tank. Calculate the power…6