This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An inventor tries to sell you his new heat engine that takes in 40 J of heat at 87C on each cycle, ... (Read 101 times)

mcmcdaniel

  • Hero Member
  • *****
  • Posts: 550
on: Jul 29, 2018
An inventor tries to sell you his new heat engine that takes in 40 J of heat at 87C on each cycle, expels 30 J at 27C, and does 10 J of work. Would it be wise to invest in this engine? Back up your conclusion with numerical calculations.
 
  What will be an ideal response?

Question 2

Metallic bonding is due to
 
  A) atoms bonding to hydrogen molecules.
  B) the transfer of electrons between atoms.
  C) unequal charge distributions around neutral molecules.
  D) the sharing of electrons by all atoms.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

LP

  • Sr. Member
  • ****
  • Posts: 302
Reply #1 on: Jul 29, 2018
Answer to Question 1

Save your money He has claimed an efficiency of 25, but the greatest possible efficiency for an engine operating between these temperatures is only 17, for a Carnot engine.

Answer to Question 2

D


mcmcdaniel

  • Member
  • Posts: 550
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

Viet Thy

  • Member
  • Posts: 329
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Cell Cycle Cell Cycle
The nitrogen cycle. The five main parts of the nitrogen cycle are: The nitrogen cycle. The five main parts of the nitrogen cycle are:
TCA Cycle TCA Cycle
Instruct recipient on giving you feedback immediately if heat becomes too intense. Remind the person ... Instruct recipient on giving you feedback immediately if heat becomes too intense. Remind the person ...
Complete Life cycle of cherry (Prunus), a eudicot Complete Life cycle of cherry (Prunus), a eudicot
Life cycle of a moss (Polytrichum) Life cycle of a moss (Polytrichum)
Video: Stimulus (introduction)

For a complete list of videos, visit our video library