BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Solutions

Chapter
Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A 1 500-kW heat engine operates at 25% efficiency. The heat energy expelled at the low temperature is absorbed by a stream of water that enters the cooling coils at 20.°C. If 60. L flows across the coils per second, determine the increase in temperature of the water.

To determine
The increase in temperature of the water.

Explanation

Section1:

To determine: The heat energy expelled at the lower temperature.

Answer: The heat energy expelled at the lower temperature is 4.5×103kJ .

Explanation:

Given Info:

The work output of the given engine per second is 1500kJ .

The efficiency of the engine is 25% .

Formula to calculate the energy expelled is,

Qc=Weng(1e1)

  • Weng is the work output of the engine
  • e is the efficiency of the engine

Substitute 1500kJ for Weng and 0.25 for e to find the energy expelled,

|Qc|=(1500kJ)(10.251)=4.5×103kJ

Thus, the heat energy expelled at the lower temperature is 4.5×103kJ .

Conclusion:

From section 1,

The heat energy expelled at the lower temperature is 4.5×103kJ

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

The fiber-rich portion of the wheat kernel is the bran layer. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Is there a connection between circadian rhythms and metabolism?

Introduction to General, Organic and Biochemistry

Why are carbon atoms 1 and 3 of glyceraldehyde not considered chiral?

Chemistry for Today: General, Organic, and Biochemistry

What is population genetics?

Human Heredity: Principles and Issues (MindTap Course List)

Why do hot stars look bluer than cool stars?

Foundations of Astronomy (MindTap Course List)

A moving beltway at an airport has a speed 1 and a length L. A woman stands on the beltway as it moves from one...

Physics for Scientists and Engineers, Technology Update (No access codes included)

What percentage of the world ocean is involved in wind-driven surface currents?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin