Problem 5 Entropy changes A 1000kg ice sculpture of the great physicist Lord Kelvin is lost overboard a pleasure boat floating on a large lake (Tiake= 27 °C). The ice is at a temperature of 0°C. By the time the sculpture is recovered, some of the ice has melted so that only 900kg of ice remains. For this entire problem, assume that the water resulting from the melted ice stays at 0 °C and does not have sufficient time to warm up to 27 °C. You may approximate the heat of fusion for water as Lf= 300 kJ/kg. a) During this time, how much heat, Q, was exchanged between the lake and the sculpture? Clearly indicate whether heat was added or removed from the ice. b) What is the change in entropy of the sculpture? (Consider the water melted from the ice as part of the sculpture.) c) How much has the entropy of the lake (not including the sculpture) changed during this time? d) What is the net change of the entropy of the whole universe due to this process? Please explicitly state whether this is positive, negative or zero.

Problem 5 Entropy changes A 1000kg ice sculpture of the great physicist Lord Kelvin is lost overboard a pleasure boat floating on a large lake (Tiake= 27 °C). The ice is at a temperature of 0°C. By the time the sculpture is recovered, some of the ice has melted so that only 900kg of ice remains. For this entire problem, assume that the water resulting from the melted ice stays at 0 °C and does not have sufficient time to warm up to 27 °C. You may approximate the heat of fusion for water as Lf= 300 kJ/kg. a) During this time, how much heat, Q, was exchanged between the lake and the sculpture? Clearly indicate whether heat was added or removed from the ice. b) What is the change in entropy of the sculpture? (Consider the water melted from the ice as part of the sculpture.) c) How much has the entropy of the lake (not including the sculpture) changed during this time? d) What is the net change of the entropy of the whole universe due to this process? Please explicitly state whether this is positive, negative or zero.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

I need these three parts answered, if you are unable to answer all three parts please leave it for another tutor to answer, thank you.
Test I: Define the following (24 Sentences). 1. What is the importance of road accident data systern? Test lI: Solve the following a) A certain highway intersection has 4000 accidents recorded for the last 45 months. If there were 6494 collision incidents per million entering vehicle, find the annual average daily traffic. b) The peak hour factor is 0.65 and the volume of traffic is 0.75 vehicle per sec. What is the highest 15 min. volume of traffic ( veh/hr )? c) From the given data of 5 vehicles passing through a 1 km segment of highway. Compute the time mean speed (kph) Vehicle Time ( sec) 96 2 78 3. 90 4. 100 104 X-X-X-X %24
Y:21)
Please show me the full solution so I will know how to solve it, thank you very much.
1) A low-friction cart is placed between two identical springs attached to rigid walls. If you push the cart against one of the springs and release it, it will continue to move back and forth between the springs. www Draw a force-time graph showing the sum of the horizontal forces exerted on the cart as it moves back and force between the springs. Scientific Abilities Is able to construct a force diagram Missing No representation is constructed. Inadequate FD is constructed but contains major errors such as incorrect mislabeled or not labeled force vectors, length of vectors, wrong direction, extra incorrect vectors are added, or vectors are missing. Needs Improvement FD contains no errors in vectors but lacks a key feature such as labels of forces with two subscripts or vectors are not drawn from single point, or axes are missing. Adequate The diagram contains no errors and each force is labeled so that it is clearly understood what each force represents. Explain whether or not this…
2. There were 42 mangoes in each crate. 12 such crates of mangoes were delivered to a factory. 4 mangoes were rotten and had to be thrown away. The remaining mangoes were packed into boxes of 10 mangoes each. Write a numerical expression in MATLAB syntax to represent this situation and then find how many boxes of mangoes were there? OFocus 4:20 AM 28°C Mostly clear 3/26/2022 LG CVENUENS THANOS BOBBLEHEAD AMANLANTE A ON CABIA ANn POCKET YOP! AVENGES KEYCHAIN INFINITY WAR Handy Fan THANOS BOBBLE HEAD IGENA ERANLIA P COs CA AN
Use Given-Required-Solution in answering problems. Answers should be rounded off to four decimal places and enclosed in a box. · A man is standing at sea level where gravitational acceleration (g) is 32.2 fps?. It is noted that per 998 ft of ascent there is a decrease of 0.0031 fps in the gravitational acceleration. (a) If the man decides to hike a mountain and reaches a point where g 30.5 fps-, how high is the point from sea level? (b) If he traverses the mountain and reaches a point where his weight was decreased by 5 percent, what is the g at this point?
I have to chart this in excel and show my work if possible. Thank you in advance.
solve the following required A)The exhaust gas density in kg/m^3 ? B)The reaction force F_R in kN ?
Question 29 Not yet an A pulley, starting from rest, is given an acceleration of 0.5 rad/s.What will be its speed in r.p.m. at the end of 2 minutes? If it is uniformly retarded at the rate of 0.3 rad /s, in how many minutes the pulley will come to rest? B Enter your answer here.... hp
mechanical engineering : engineering drawing exercise sketch the figure using autocad designing software
Where to put marker for maximum steady state force. It is F-t graph.