Solution Found!

Physics / Sears and Zemansky's University Physics with Modern Physics 13 / Chapter 20 / Problem 37P

Sears and Zemansky's University Physics with Modern Physics | 13th Edition | ISBN: 9780321696861 | Authors: Hugh D. Young; Roger A. Freedman; A. Lewis Ford

Change Question

Solved: A certain heat engine operating on a Carnot cycle

Chapter 20, Problem 37P

(choose chapter or problem)

Get Unlimited Answers

QUESTION:

Problem 37P

A certain heat engine operating on a Carnot cycle absorbs 150 J of heat per cycle at its hot reservoir al 135°C and has a thermal efficiency or 22.0%. (a) How much work does this engine do per cycle? (b) How much heat does the engine waste each cycle? (c) What is the temperature of the cold reservoir? (d) By how much does the engine change the entropy of the world each cycle? (e) What mass of water could this engine pump per cycle from a well 35.0 m deep?

Questions & Answers

QUESTION:

Problem 37P

A certain heat engine operating on a Carnot cycle absorbs 150 J of heat per cycle at its hot reservoir al 135°C and has a thermal efficiency or 22.0%. (a) How much work does this engine do per cycle? (b) How much heat does the engine waste each cycle? (c) What is the temperature of the cold reservoir? (d) By how much does the engine change the entropy of the world each cycle? (e) What mass of water could this engine pump per cycle from a well 35.0 m deep?

ANSWER:

Solution 37P

To solve this question, we shall have to use the following equations.

The efficiency of a heat engine $\eta{}=\frac{W}{Q{\ }_{H}}=$ …..(1), where W is the work done and $Q{\ }_{H}$ is the heat absorbed by a heat engine.

The efficiency of a Carnot engine is given by, $\eta{}=1-\frac{T{\ }_{C}}{T{\ }_{H}}$ …..(2), here $T{\ }_{C}$ is the temperature of cold reservoir and $T{\ }_{H}$ is the temperature of hot reservoir.

Now, given that $Q{\ }_{H}=150\ J$

$\eta{}=22.0\%=22/100=0.22$

(a) From equation (1),

$0.22=\frac{W}{150\ J}$

$W=33\ J$

Study Tools You Might Need

Chapter: 14 Problem: 90P

Introductory Chemistry 5
Problem 90P How much 0.200 M KOH is required to completely neutralize 25.0 mL of 0.150 M HClO4?

Chapter: 2 Problem: 26

Physics for Scientists and Engineers: A Strategic Approach, Standard Edition (Chs 1-36) 4
A skier is gliding along at 3.0 m/s on horizontal, frictionless snow. He suddenly starts down a 10 incline. His speed at the bottom is 15 m/s. a. What is the length of the incline? b. How long does it take him to reach the bottom?

Chapter: 0 Problem: 1

Biology 8
Phosphorylation cascades involving a series of protein kinases are useful for cellularsignal transduction because a. they are species specific. b. they always lead to the same cellular response. c. they amplify the original signal manyfold. d. they counter the harmful effects of phosphatases. e. the

Chapter: 1 Problem: 8

Anatomy & Physiology 1
The smallest independently functioning unit of an organism is a(n) ________. a. cell b. molecule c. organ d. tissue

Chapter: 43 Problem: 3

Campbell Biology in Focus - Standalone book 1
What is the single greatest threat to biodiversity? a. overharvesting of commercially important species b. introduced species that compete with native species c. pollution of Earths air, water, and soil d. disruption of trophic relationships as more and more prey species become extinct e. habitat alt

Chapter: 3 Problem: 4

Macroeconomics 22nd
What are the determinants of supply? What happens to the supply curve when any of these determinants change? Distinguish between a change in supply and a change in the quantity supplied, noting the cause(s) of each.

Chapter: 30 Problem: 5

Biology 11
Radial symmetry is characteristic of (a) protostomes (b) chordates (c) mollusks (d) cnidarians (e) sponges

Chapter: 41 Problem: 1

Biology: The Unity and Diversity of Life 15
Drugs that interfere with sympathetic nerve signals are often prescribed for men who have high blood pressure. How might such drugs impair sexual performance?

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

×

Register

Sign up for access to all content on our site!

Or login if you already have an account