NEET Exam > NEET Videos > Physics Class 11 > Heat Engines & Second Law of Thermodynamics
Heat Engines & Second Law of Thermodynamics Video Lecture | Physics Class 11 - NEET
|
102 videos|411 docs|121 tests
|
FAQs on Heat Engines & Second Law of Thermodynamics Video Lecture - Physics Class 11 - NEET
| 1. What is a heat engine? |  |
Ans. A heat engine is a device that converts heat energy into mechanical work. It operates in a cyclic manner by taking in heat from a high-temperature source, performing work, and then releasing the remaining heat to a low-temperature sink.
| 2. How does a heat engine work? | |
Ans. A heat engine works based on the principles of the Second Law of Thermodynamics. It follows a cycle consisting of four processes: intake of heat at a high temperature, expansion of a working substance, exhaust of heat at a low temperature, and compression of the working substance. This cycle allows the engine to convert heat into mechanical work.
| 3. What is the Second Law of Thermodynamics? | |
Ans. The Second Law of Thermodynamics states that heat cannot spontaneously flow from a colder body to a hotter body. It also establishes the concept of entropy, which tends to increase in isolated systems. This law places limitations on the efficiency of heat engines and the direction of heat flow.
| 4. What is the efficiency of a heat engine? | |
Ans. The efficiency of a heat engine is defined as the ratio of the useful work output to the heat input. It is represented by the equation: Efficiency = (Useful work output / Heat input). Due to the Second Law of Thermodynamics, no heat engine can have an efficiency of 100%, meaning that some of the heat input will always be wasted.
| 5. Can a heat engine violate the Second Law of Thermodynamics? | |
Ans. No, a heat engine cannot violate the Second Law of Thermodynamics. The Second Law states that heat naturally flows from a higher temperature to a lower temperature, and it is impossible to extract all the heat and convert it into useful work. The efficiency of a heat engine is limited by this law, ensuring that some heat is always lost in the process.
Related Exams
About this Video
|
1.3K Views |
|
4.98/5 Rating |
|
Nov 09, 2024 Last updated |
Video Description: Heat Engines & Second Law of Thermodynamics for NEET 2024 is part of Physics Class 11 preparation.
The notes and questions for Heat Engines & Second Law of Thermodynamics have been prepared according to the NEET exam syllabus.
Information about Heat Engines & Second Law of Thermodynamics covers all important topics for NEET 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Heat Engines & Second Law of Thermodynamics.
Introduction of Heat Engines & Second Law of Thermodynamics in English is available as part of our Physics Class 11 for NEET & Heat Engines & Second Law of Thermodynamics in
Hindi for Physics Class 11 course. Download more important topics related with notes, lectures and mock test series for
NEET Exam by signing up for free.
Description
Video Lecture & Questions for Heat Engines & Second Law of Thermodynamics Video Lecture | Physics Class 11 - NEET - NEET full syllabus preparation | Free video for NEET exam to prepare for Physics Class 11.
Information about Heat Engines & Second Law of Thermodynamics
Here you can find the meaning of Heat Engines & Second Law of Thermodynamics defined & explained in the simplest way possible.
Besides explaining types of Heat Engines & Second Law of Thermodynamics theory, EduRev gives you an ample number of questions to practice Heat Engines & Second Law of Thermodynamics tests,
examples and also practice NEET tests.
|
102 videos|411 docs|121 tests
|
|
Explore Courses for NEET exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Heat Engines & Second Law of Thermodynamics Video Lecture | Physics Class 11 - NEET
,past year papers
,Summary
,Objective type Questions
,Extra Questions
,Heat Engines & Second Law of Thermodynamics Video Lecture | Physics Class 11 - NEET
,Free
,Previous Year Questions with Solutions
,Viva Questions
,MCQs
,shortcuts and tricks
,Semester Notes
,mock tests for examination
,practice quizzes
,study material
,Heat Engines & Second Law of Thermodynamics Video Lecture | Physics Class 11 - NEET
,Important questions
,video lectures
,ppt
,Exam
,Sample Paper
;
Study Heat Engines & Second Law of Thermodynamics on the App
Students of NEET can study Heat Engines & Second Law of Thermodynamics alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Heat Engines & Second Law of Thermodynamics,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Heat Engines & Second Law of Thermodynamics is prepared as per the latest NEET syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup