GATE Chemical Engineering Exam > GATE Chemical Engineering Videos > Crash Course for GATE Chemical Engineering > First law for closed systems
First law for closed systems Video Lecture | Crash Course for GATE Chemical Engineering
FAQs on First law for closed systems Video Lecture - Crash Course for GATE Chemical Engineering
| 1. What is the First Law of Thermodynamics for closed systems? |  |
Ans. The First Law of Thermodynamics, also known as the Law of Energy Conservation, states that the total energy of a closed system is constant. It implies that energy can neither be created nor destroyed, but can only be transformed from one form to another. In mathematical terms, it can be expressed as ΔU = Q - W, where ΔU is the change in internal energy, Q is the heat added to the system, and W is the work done by the system.
| 2. How is the First Law of Thermodynamics applied in chemical engineering? | |
Ans. In chemical engineering, the First Law is crucial for analyzing energy balances in processes such as reactors, distillation columns, and heat exchangers. Engineers use this law to calculate the energy changes associated with chemical reactions, phase changes, and heat transfer, ensuring that energy input and output are accounted for in process design and optimization.
| 3. What are the practical implications of the First Law in closed systems? | |
Ans. In practical terms, the First Law allows engineers to design systems that efficiently utilize energy, minimize losses, and improve sustainability. For instance, by understanding energy transformations, engineers can optimize processes to reduce energy consumption, recover waste heat, and implement energy-efficient technologies.
| 4. Can you give an example of the First Law in action within a chemical process? | |
Ans. A common example is the combustion of a fuel in a closed reactor. The chemical energy stored in the fuel is converted into thermal energy (heat) and work (if the system expands). By applying the First Law, engineers can calculate the energy released during combustion and the resulting temperature change in the reactor, which is essential for process control and safety.
| 5. What are the limitations of the First Law of Thermodynamics in practical applications? | |
Ans. While the First Law is fundamental, it does not provide information about the direction of processes or the spontaneity of reactions, which is governed by the Second Law of Thermodynamics. Additionally, it assumes that all changes occur in a closed system without losses, which may not be realistic in many industrial applications. Thus, engineers must also consider heat losses, inefficiencies, and non-ideal behaviors when applying the First Law.
About this Video
4.77/5
Rating
Sep 10, 2025
Last updated
Related Exams
Video Description: First law for closed systems for GATE Chemical Engineering 2025 is part of Crash Course for GATE Chemical Engineering preparation.
The notes and questions for First law for closed systems have been prepared according to the GATE Chemical Engineering exam syllabus.
Information about First law for closed systems covers all important topics for GATE Chemical Engineering 2025 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for First law for closed systems.
Introduction of First law for closed systems in English is available as part of our Crash Course for GATE Chemical Engineering for GATE Chemical Engineering & First law for closed systems in
Hindi for Crash Course for GATE Chemical Engineering course. Download more important topics related with notes, lectures and mock test series for
GATE Chemical Engineering Exam by signing up for free.
Description
Video Lecture & Questions for First law for closed systems Video Lecture | Crash Course for GATE Chemical Engineering - GATE Chemical Engineering full syllabus preparation | Free video for GATE Chemical Engineering exam to prepare for Crash Course for GATE Chemical Engineering.
Information about First law for closed systems
Here you can find the meaning of First law for closed systems defined & explained in the simplest way possible.
Besides explaining types of First law for closed systems theory, EduRev gives you an ample number of questions to practice First law for closed systems tests,
examples and also practice GATE Chemical Engineering tests.
Related Searches
video lectures
,Viva Questions
,MCQs
,First law for closed systems Video Lecture | Crash Course for GATE Chemical Engineering
,study material
,First law for closed systems Video Lecture | Crash Course for GATE Chemical Engineering
,Previous Year Questions with Solutions
,Sample Paper
,Extra Questions
,Summary
,mock tests for examination
,shortcuts and tricks
,practice quizzes
,Important questions
,past year papers
,Objective type Questions
,ppt
,Semester Notes
,Free
,First law for closed systems Video Lecture | Crash Course for GATE Chemical Engineering
,Exam
;
Study First law for closed systems on the App
Students of GATE Chemical Engineering can study First law for closed systems alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the First law for closed systems,
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 First law for closed systems is prepared as per the latest GATE Chemical Engineering syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup on EduRev and stay on top of your study goals
10M+ students crushing their study goals daily