The heat capacity of an object (A) is the amount of heat (Q) required to raise it’s tempeeature, per degree increase (Delta T). A = Q/DeltaT. Briefly Explain whether A is intensive or extensive property.
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A: GivenEdge length (a) = 5.7 x 10-6 memissivity (∈) = 0.74T2 = -1100C=163 KT1 = -1600C =113K
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Q: p (Pa) 3.0 x 105 2.0 × 105- 1.0 × 105 b a с 이 0.02 0.04 0.06 -V (cm³)
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A: Heve a look
Q: Please answer it with an explanation. Don't use chatgpt, i need a handwritten solution.
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- 4) A ground source heat pump heats a building by extracting heat from the ground and pumping it into the building. Define: Qc = heat extracted from the ground, Qn= heat pumped into the building, W = electric energy used by the heat pump, Tc= temperature of the ground, T = temperature of building (Qc, Qn, and W are positive by definition). Assume Tr > Tc. a) Draw a diagram showing energy flow in and out of the heat pump. b) Write a general expression for the change AS in the entropy of the "universe", that is the heat pump plus the cold and hot reservoirs, in terms of the quantities defined above. Now assume ideal (reversible) operation, and take Te= 10 °C and Tp= 20 °C. What is the coefficient of performance (ČOP) of the heat pump? By what factor would this change if we had Tc = 0 °C instead?7) What is the total amount of heat in units of Btu’s we must add to a 5.00 pound block of ice at negative 12 degrees Fahrenheit to turn all of it into steam at 242.00 degrees Fahrenheit? (the heat of fusion and the heat of vaporization in US units is NOT in Table 15. You will find those values in the chapter material in the book) Use a temperature bar to show your work. Heat of vaporization (Water) = 540 cal/g, or 540 kcal/kg, or 2.26 MJ/kg, or 970 Btu/lbHeat transfer, Conservation of Energy question: Students A and B used the following steps to find the heat capacity of a sample of duraluminalloy:1. Filled a polystyrene cup with approx. 125 g of water at temp 55°C2. Observed the temperature of the hot water at 1 minute intervals for 8 minutes3. Took duralumin metal sample from constant temperature vessel at approx. 20°C and submergedit in the hot water4. Observed the temperature of the water plus duralumin at 1 minute intervals for 8 more minutes See the image below for the results. 1. in what ways was heat energy transferred in this experiment? Is it the hot water transfer heat to the alloy sample and the environment of something else? 2. Should the data point at t=+0.5 minutes be included in the line of best fit for positive time? 3. What were the temperature changes of the water and the alloy sample, estimate the uncertainties? 4. Find the specfic heat capacity of the duralumin alloy sample. Estimate the uncertainty in this…
- Physics written by hand.Needs Complete typed solution with 100 % accuracy. Don't use chat gpt or ai i definitely upvote you.This is a calculation only. Energy2d isn’t able to do phase changes as far as I’ve learned. There was a different simulation for this but it is not currently free. You combine 50g of ice at -10oC with 150g of liquid water at 75oC. After a few minutes, you measure the final equilibrium temperature of all of the H2O to be 35.1 oC. Use this information to “experimentally” determine the heat of transformation of water, Lfusion. cwater=4190 J/kgK, cice=2090 J/kgK Show all of your work and compare to the accepted value Lfusion=3.33x105 J/kg.