A 2.5 kg copper block at 200 °C and 5 kg aluminum block at 20 °C come in thermal contact. Find the final temperature and the entropy generated. Consider both blocks together as your system and assume no heat loss to the surroundings.

A 2.5 kg copper block at 200 °C and 5 kg aluminum block at 20 °C come in thermal contact. Find the final temperature and the entropy generated. Consider both blocks together as your system and assume no heat loss to the surroundings.

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

Related questions

Q: Water undergoes an adiabatic and reversible process from 0.5 MPa, 5000C to 50 kPa. Calculate the…

A: Givenworking fluid -waterP1=0.5MPa =500kPaT1=500oC=773KP2=50kPa

Q: A 1500 kW electrical heater is used to heat 25 kg of water (cp=4.186 J/kgK) lin an insulated bucket,…

Q: In a piston-cylinder assembly, 0.2 MPa pressure, 0.5 kg of Refrigerant 134 (SA-134) at 20 °C is…

Q: 200 gram of steam at 200kPa are compressed undergoing isothermal quasi-static process at 200oC until…

Q: A 130 L rigid tank initially contains nitrogen at 400 kPa, 100 K. The tank is connected to a line…

A: Given: The volume of the tank, V = 130 L The pressure inside the tank, P1 = 400 kPa The temperature…

Q: There are 1.5 kgm of gas for which R=0.377kJ/kg-K and k=1.3 that undergo an isometric process from…

A: Given Mass, m = 1.5 kg Heat removed, Q = - 1500kJ R =…

Q: 0.5 mol of an ideal gas (with Cv,m=5/2R or 2.5R) that is initially held at V=2.5L and P=1.2atm…

Q: Helium (1.9 kg) is being stored in a rigid tank at 21 deg C. The tank is set outside and the…

Q: A 20 kg/s steam enters a turbine at an initial enthalpy of 2456kJ/kg and exits at 1987 kJ/kg. If the…

Q: You have an adiabatic steam turbine. The steam enters a 0.1m diameter pipe at 200 m/s and it at…

Q: Q6. A 500 W heater is used to melt 5 kg of solid ice at -30°C to gas at +130°C at a constant…

A: Since you have posted a question with multiple subpart, we will solve first three for you for…

Q: 8.One kg of air is heated in a closed rigid vessel such that its temperature changes from 270C to…

Q: A compressor has R-134a entering at 10°C, 100 kPa and exiting as a saturated vapor. It is given that…

A: Given Data The internal temperature of the refrigerant: T1=10°C=283 K The inlet pressure is: P1=100…

Q: R-410A

A: V=10l=.01m3T1=-10oCx1=.8T2=40oCWe=36kJ/kg from the R140 saturation table at T1=-10oC…

Q: Five kilograms of neon in a constant volume system. The neon is initially at 550 kPa and 350 K. Its…

Q: Q1: Steam at 2 Mpa and 250 C is expanded isentropically to 0.36 Mpa and it is then further expanded…

Q: For a process with 1500 kJ of heat transfered out of a system at an interface temperature of 300K,…

A: The heat transfer from the system, (QR)=-1500 kJThe interface temperature, (Ti)=300 KDetermine the…

Q: 20 g copper at 40 degree celsius is dropped into a constant volume calorimeter containing 100 g…

Q: Calculate the entropy change of 1 kg ice that is heated from -25 ° C to 350 K, consider that the Cp…

A: T1 = -25 C = 248 K T2 = 0 C = 273 K T3 = 350 K L = 6.02 kJ/mol Cp)w = 75.3 J/mol K Cp)i = 37.7…

Q: A 25 kg copper block at 373 K is dropped into an insulated tank that contains 80 L of water at 293…

Q: Air at 130 kPa and 50oC expands isentropically to 100 kPa. Find its final temperature.

Q: a closed system contained a copper block of density 9.96g/cm3 at 25 degrees celsius in reversible…

Q: A cylinder contains 1kg of Argon at 300K and 100kPa. The Argon is compressed until it reaches…

A: Given data as per the question Mass of argon =1 kg Initial pressure of gas =100 kpa The initial…

Q: Three test tubes containing water. The first test tube containing 10 gm water at 25 °C, second test…

A: Heat transfer: the transfer of heat from one body to another body due to the temperature differences…

Q: 1 leg of air is allowed to expand reversibly in a yhnder Behind a piston in such that the…

A: Thermodynamics: It is a branch of science which deals with work, heat, and energy. Also, it studies…

Q: Air at 1200 K, 800 kPa expands in a polytropic process with n = 1.33 to a pressure of 300 kPa. Find…

Q: A superheat steam at P=10 MPa and 600 C is isentropically expanded in a turbine until its pressure…

A: Given data, P1=10 MPa , T1= 600°C After isentropic expansion P2=100 KPa

Q: An insulated chamber containing 2 L of saturated liquid water at 300 kPa constant pressure. There is…

A: The water is stirred and heated in an insulated chamber. The water is evaporated by heating using an…

Q: Please give detailed solution. I need solution in a handwritten format only ,no gpt.

A: Page 1 of 3: Page 2 of 3: Page 3 of 3: Please take note of the link to the steam table that I've…

Q: a5) 1 kg of AIR at P = 100 kPa is contained in a RIGID TANK made of IRON of mass 0.5 kg. Initially,…

A: Entropy generation is the amount of un useful energy produced by an irreversible process. When heat…

Q: One kg of water of 0°C is brought into contact with a heat reservoir at 95° C. When the water has…

A: We have, Mass of water, m=1 kg, T1=0oC=273 K Temperature of heat reservoir, T2=95oC=368 K

Q: Q4: 05 lg of water at 7bar and 15¿ is contained in a cylin- der 0-3m diameter by supplied until the…

A: Given data m=0.5 kgT1=15°c=288 KT2=204°c=477 Kd=0.3 m

Q: 1. Ten cu ft of air at 300 psia and 400°F is cooled to 140°F at constant volume. What are (a) the…

A: Given data as per question T1=4000F=477.59 k=859.67 0RT2=1400F=333.15k=599.67 0R

Q: How much entropy of 5 kJ of ice will change as it melts into water at the same temperature (O°C) ?…

Concept explainers

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

Question

A 2.5 kg copper block at 200 °C and 5 kg aluminum block at 20 °C come in thermal contact. Find the final
temperature and the entropy generated. Consider both blocks together as your system and assume no
heat loss to the surroundings.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

B-A refrigerant-134a is compressed polytropically from 2 bar dry saturated to 10 bar and 60 °C. Calculate the work, heat and change in entropy 05 A-1
An 8 kW compressor blows the air at 22 C and 100 kPa to 1600 kPa. reversibly to the pressure (P v n = constant). In addition, heat transfer to the surrounding environment at 22 °C. is happening. (n = 1.33) a) Find the compressor work expression (integrating) according to the Pvn interchange and the result is n, R, T1, Express it in terms of P1, P2. b) Find the mass flow and outlet temperature of the air. c) Find the total irreversibility by applying the exergy balance. d) Find the isentropic efficiency of the compressor (k=1.4). e) In case of using two compressors with intercooler, the intermediate pressure (Px) is in terms of P1 and P2. take the derivative and find the total compressor power in this case and add it to a single compressor. Determine your gain in kW according to
2.Ammonia gas(k=1.32) flows isentropically from100kPa and 130C to 400kPa with required input compressor work of 360 kW. Find the mass flow rate of ammonia gas.
could you explain were you get the numbers for formula to calculate heat transfer?Draw the T-V diagram showing all stages?Whats the final stage condition, is a gas, liquid explain? Solve using energy balance equation.
A pressure cooker 6 ltr
In a cycle, a 4kg ideal gas(MW=3g/mol and k=2.3) confined in a controlled mass system went through three processes.the gas was started at 20kPa and 310K in the first process, and it was isometrically increased by 30kPa. The gas subject to 400Kusing a process defined by PV^3=C.It returns to its original state polytropically.Calculate the entropy change for each process.
Give detailed solution. No Chatgpt
3.5 kg of water are present in a saturated liquid-vapor filling a container whose volume is 1.5 m^3 at a temp of 30 C. What is the pressure value inside the container? Calculate quality x. Calculate the entropy.
Where did you get the value of entropy for state 1?
Following a constant entropy process (s=C), a steam is expanded from 400 psia, 700 degrees farenheit to 6psia at a rate of 5lb/min. (a) Find the entropy of the first and second states, (b) What is the state of steam before expansion? (c) What is the quality of steam right after it has expanded?
saturated steam at 0.6 mpa is compressed in an irreversible adiabatic process with an effieciency of 80% for a final pressure of 0.46 mpa. find final and initial entropies