Answered step by step

Verified Expert Solution

Link Copied!

Question

1 Approved Answer

Posted on Mar 03, 2021

A cast iron (Cp = 0.5 kJ / kg K) weighing 40 kg and a temperature of 450 C is cooled in 150 kg

A cast iron (Cp = 0.5 kJ / kg K) weighing 40 kg and a temperature of 450 ° C is cooled in 150 kg of oil (Cp = 2.5 kJ / kg K) at 25 ° C. If there is no heat loss, determine the entropy change: a. Iron b. Oil c. Total

Step by Step Solution

★★★★★

3.35 Rating (164 Votes )

There are 3 Steps involved in it

Step: 1

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

Step: 3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Principles of heat transfer

Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn

7th Edition

495667706, 978-0495667704

More Books

Students also viewed these Physics questions

Question

★★★★★

To determine the entropy change for an irreversible process between states 1 and 2, should the integral -1 2 dQ/T be performed along the actual process path or an imaginary reversible path? Explain.

Answered: 1 week ago

Question

★★★★★

A steel casting weighing 2 kg has an initial temperature of 500oC; 40 kg of water initially at 25oC is contained in a perfectly insulated steel tank weighing 5 kg. The casting is immersed in the...

Answered: 1 week ago

Question

★★★★★

A 200-kg cast iron machine part at 500oC is left to cool at room temperature. Assume the machine part is a cube and has an emissivity of 0.780. At what rate is the machine part initially losing heat...

Answered: 1 week ago

Question

★★★★★

The following data are from the accounting records of Niles Castings for year 2: Units produced and sold . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85,000 Total revenues and costs Sales...

Answered: 1 week ago

Question

★★★★★

You are the owner of two furniture stores: one catering to upper-middle class consumers and the other to lower class consumers. How do social class differences influence each stores: (a) Product...

Answered: 1 week ago

Question

★★★★★

Common-size and trend percents for Roxi Companys sales, cost of goods sold, and expenses follow. Determine whether net income increased, decreased, or remained unchanged in this three-year period....

Answered: 1 week ago

Question

★★★★★

In a queue with unlimited waiting space, arrivals are Poisson (parameter ) and service times are exponentially distributed (parameter ). However, the server waits until K people are present before...

Answered: 1 week ago

Question

★★★★★

Patrick Kellogg has prepared the following list of statements about the accounting cycle. 1. "Journalize the transactions" is the first step in the accounting cycle. 2. Reversing entries are a...

Answered: 1 week ago

Question

★★★★★

Question #1 Assuming electricity in Atlanta costs $0.079/kWh and Atlanta receives 1789kWh/m2/yr of insolation, what should the installed PV system cost be for the cost of PV electricity to equal that...

Answered: 1 week ago

Question

★★★★★

Ewing Natural Gas is a large energy company with headquarters in Dallas, Texas. The company offers a wide variety of energy products and has annual revenues of approximately $50 billion. Because of...

Answered: 1 week ago

Question

★★★★★

Really need help with this question. Last time I asked it was wrong. In addition to risk-free securities, you are currently invested in the Tanglewood Fund, a broad-based fund of stocks and other...

Answered: 1 week ago

Question

★★★★★

What is the first step in defining requirements for an application? determining what the application must have and do creating a superclass for all of the objects in the application choosing which...

Answered: 1 week ago

Question

★★★★★

Research a prominent current or historical organizational leader from your country and develop a 2-to-4 page APA-formatted paper discussing the following: Brief biography on the leader you selected...

Answered: 1 week ago

Question

★★★★★

After watching the Super Size Me movie online answer the following questions. 6. Just after the film "Supersize Me" was released, McDonald's terminated the "supersize" option at all its stores. The...

Answered: 1 week ago

Question

★★★★★

A class of 22 students consists of 12 girls and 10 boys. A committee of five students is being chosen from this class to plan a school event. Determine the number of 5 student committees that can be...

Answered: 1 week ago

Question

★★★★★

(CLO2:PLO1:C2) 3. a) Process Strategy is to create a process to produce products that meets customer requirements within cost and other managerial constraints. List down FOUR (4) basic process...

Answered: 1 week ago

Question

★★★★★

In an industrial project the equipment installation can be started 1 5 days after the equipment foundation is completed. What type of dependency is this? Question 1 2 options: Start - to - finish...

Answered: 1 week ago

Question

★★★★★

A city maintains a solid waste landfill that was 12 percent filled at the end of Year 1 and 26 percent filled at the end of Year 2. During those periods, the government estimated that total closure...

Answered: 1 week ago

Question

★★★★★

Liquid sodium is to be heated from 500 K to 600 K by passing it at a flow rate of 5.0 kg/s through a 5 cm ID tube whose surface is maintained at 620 K. What length of tube is required?GIVENLiquid...

Answered: 1 week ago

Question

★★★★★

Using Table 1.4 as a guide, prepare a similar table showing the order of magnitudes of the thermal resistances of a unit area for convection between a surface and various fluids.GIVENTable 1.4??The...

Answered: 1 week ago

Question

★★★★★

To reduce the home heating requirements, modern building codes in many parts of the country require the use of double-glazed or double-pane windows, i.e., windows with two panes of glass. Some of...

Answered: 1 week ago

Question

★★★★★

For his Statistics class experiment, researcher J. Gilbert decided to study how parents' income affects children's performance on standardized tests like the SAT. He proposed to collect information...

Answered: 1 week ago

Question

★★★★★

Researchers who examined health records of thousands of males found that men who died of myocardial infarction (heart attack) tended to be shorter than men who did not. a) Is this an experiment? If...

Answered: 1 week ago

Question

★★★★★

Coffee stations in offices often just ask users to leave money in a tray to pay for their coffee, but many people cheat. Researchers at Newcastle University replaced the picture of flowers on the...

Answered: 1 week ago

Previous Question Next Question