Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 4: 4.7 (page 129)

Why must you put an air conditioner in the window of a building, rather than in the middle of a room?

Short Answer

Expert verified

We must put t an air conditioner in the window to cool the room effectively.

Step by step solution

01

Given

Air condition is put in window.

Explain why?

02

Explanation

An air conditioner works on hot and cold reservoir concept. It considers outside of the house as a hot reservoir and room as a cold reservoir.

It works by extracting heat from room and emitting it outside. It will absorb the heat from a room and will transfer it to outside,when it is placed in a window of the room. In this way, the room will be cooled effectively by the air conditioner.

If we put in the middle of the room then the extracted heat will be thrown back to the same room, so it will not have much cooling effect on the room.

So it must be placed in a window.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A common (but imprecise) way of stating the third law of thermodynamics is "You can't reach absolute zero." Discuss how the third law, as stated in Section 3.2, puts limits on how low a temperature can be attained by various refrigeration techniques.

Prove directly (by calculating the heat taken in and the heat expelled) that a Carnot engine using an ideal gas as the working substance has an efficiency of1-tcth

Use the definition of enthalpy to calculate the change in enthalpy between points 1 and 2 of the Rankine cycle, for the same numerical parameters as used in the text. Recalculate the efficiency using your corrected value ofH2, and comment on the accuracy of the approximationH2≈H1.

A coal-fired power plant, with parameters similar to those used in the text above, is to deliver1GW109wattsof power. Estimate the amount of steam (in kilograms) that must pass through the turbine(s) each second.

Liquid HFC-134a at its boiling point at 12 bars pressure is throttled to 1 bar pressure. What is the final temperature? What fraction of the liquid vaporizes?

Table 4.3. Properties of the refrigerant HFC-134a under saturated conditions (at its boiling point for each pressure). All values are for 1kgof fluid, and are measured relative to an arbitrarily chosen reference state, the saturated liquid at -40°c. Excerpted from Moran and Shapiro (1995).
See all solutions

Recommended explanations on Physics Textbooks

Kinematics Physics

Read Explanation

Scientific Method Physics

Read Explanation

Space Physics

Read Explanation

Wave Optics

Read Explanation

Physical Quantities And Units

Read Explanation

Measurements

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free