Thermodynamics NEET, Solutions To Question Papers Of Last Six Years
A good rank in the National Eligibility cum Entrance Test (NEET) for undergraduates is a dream of many students who wish to get an MBBS seat in colleges across India. To prepare for NEET, students should practice the previous year's questions and understand the important areas to be focused on for the NEET exam. Every question of NEET is important as it is a highly competitive exam. Here we analyse the Class 12 NCERT chapter Thermodynamics using past six-year papers and discuss the past six-year questions from Thermodynamics NEET Physics paper.
LiveNEET UG 2026 LIVE: NTA NEET syllabus out at neet.nta.nic.in; NEET brochure expected soon, updatesJan 10, 2026 | 4:18 PM ISTRead More
The types of institutes that take part in the NEET UG exam are:
- All India Institutes
- Central Universities
- Deemed Universities
- AIIMS Institutes
- JIPMER Institutes
In the last six years of NEET papers a total of eight questions were asked from the chapter Thermodynamics. Thermodynamics belongs to the Class 11 NCERT Physics syllabus. NEET Thermodynamics is a small chapter that can be understood easily. Questions from Thermal Properties Of Matter are not included here. Only the NCERT Class 11 Physics, chapter 12 - Thermodynamics is included. Let us see the topics covered in the past six years of NEET papers and their weightage.
Topics And Number Of Questions
Topic | Number Of Questions | Weightage |
First Law Of Thermodynamics | 2 | 25% |
Thermodynamic Processes | 4 | 50% |
Carnot Engine | 2 | 25% |
A total of eight questions are analysed out of which three are from thermodynamic processes. From the topic thermodynamic process, two questions are from adiabatic processes and one is a match to the following questions that cover all the important thermodynamic processes. Two questions were from the topics First Law Of Thermodynamics and Carnot Engine. Let us have a look at the previous year questions from Thermodynamics (2017-2022).
Also Read| NEET Previous Year Question Papers
Q 1 - NEET 2017
A Carnot engine having an efficiency of 1/10as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at a lower temperature is:
Answer-
For a Carnot cycle
= Coefficient of performance
= Efficiency of Carnot engine
Q 2 - 2017
Thermodynamic processes are indicated in the following diagram.
Match the following
Column-1 Column-2
| P. Process I | a. Adiabatic |
| Q. Process II | b. Isobaric |
| R. Process III | c. Isochoric |
| S. Process IV | d. Isothermal |
Answer-
P 
c, Q 
a, R 
d, S 
b
Process I-volume is constant-isochoric
Process IV-pressure is constant-Isobaric
Process II is adiabatic and Process III is isothermal
Q 3 - NEET 2018
A sample of 0.1 g of water at 100°C and normal pressure (1.013 x 105 Nm-2) requires 54 cal of heat energy to convert to steam at 100°C. If the volume of the steam produced is 167.1 cc, the change in internal energy of the sample, is
Answer-
Change in internal energy-
Q 4 - NEET 2018
The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is
Answer-
Q 5 - 2018
The volume (V) of a monatomic gas varies with its temperature (T), as shown in the graph. The ratio of work done by the gas, to the heat absorbed by it, when it undergoes a change from state A to state B, is
Answer-work done =
heat absorbed = 
ratio of work to heat
Q 6 - 2019
In which processes, the heat is neither absorbed nor released by a system?
Answer-
In the adiabatic process heat is neither absorbed nor released by the system.
Q 7 - 2021
Two cylinders A and B of equal capacity are connected to each other via a stop cock. A contains an ideal gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stop cock is suddenly opened. The process is:
Answer-
As the entire system is thermally insulated and as free expansion will be taking place the temperature of the gas remains the same. The process is adiabatic
A similar type of question is asked in the NCERT Class 11 physics book. The question is given below-
Two cylinders A and B of equal capacity are connected to each other via a stopcock. A contains gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. Answer the following
(a) What is the final pressure of the gas in A and B ?
(b) What is the change in internal energy of the gas?
(c) What is the change in the temperature of the gas?
(d) Do the intermediate states of the system (before settling to the final equilibrium state) lie on its P-V-T surface?
Q 8- 2022
An ideal gas follows a process described by 
from 
to 
(C is a constant). Then
if P1 > P2 then T2 > T1
if V2 > V1 then T2 < T1
if V2 > V1 then T2 > T1
if P1 > P2 then V2 > V1
![\left [\frac{nRT}{V} \right ]V^{2}= C](https://cache.careers360.mobi/media/articles/uploads/froala_editor/images/2022/9/21/1663753497645.png){kind=small}
TV = constant
so
All the concepts of NCERT Class 11 chapter Thermodynamics are essential for the NEET exam. Following the NCERT book and the previous year, question papers will give enough information to crack the NEET questions from Thermodynamics.
Articles
Related Stories
|
Upcoming Medicine Exams
Certifications By Top Providers
Explore Top Universities Across Globe
Popular Courses and Specializations
List of colleges accepting NEET
Browse Medicine Colleges by State
Questions related to NEET
On Question asked by student community
Have a question related to NEET ?
Hi there,
Apart from NEET and CUET you can explore the following career paths to
Students pursuing the PCB (Physics, Chemistry, Biology) stream can explore a wide range of options apart from CUET and NEET. Their choices are not just limited to medicine and can expand to include numerous areas
Hello,
The link to the papers is attached here. Solving previous year questions will help you understanding the important topics. You can also practice the sample papers and mock test papers of careers360 which will help you analyse your in-depth performance.
Thank you.
HELLO,
Below i am attaching the link through which you can download the NEET question paper in Hindi PDF
Here is the link :- https://medicine.careers360.com/hi/articles/neet-question-paper
Hope this will help you!
Hello Akanksha
It is possible to complete the syllabus within 4 months with discipline and clear plan. You need to be consistent everyday.
•In the first month you can complete
Units & measurement, motion in 1d and 2d, laws of motion, work power energy
Some basic concepts of chemistry, atomic
Hello,
The application process for NEET UG 2026 state quota seats in Karnataka, Gujarat, Maharashtra, and Puducherry is expected to begin in July 2026, after the NEET 2026 results are announced in June 2026. The exact dates are announced by each state's respective counselling authority.
I hope it will clear
Popular NEET Questions
the product 'P' will be ,
Option: 1
Option: 2
Option: 3
Option: 4
| Column A | Column B |
| A |
a) Organisation of cellular contents and further cell growth. |
| B |
b) Leads to formation of two daughter cells. |
| C |
c) Cell grows physically and increase volume proteins,organells. |
| D |
d) synthesis and replication of DNA. |
Match the correct option as per the process shown in the diagram.
Option: 1
1-b,2-a,3-d,4-c
Option: 2
1-c,2-b,3-a,4-d
Option: 3
1-a,2-d,3-c,4-b
Option: 4
1-c,2-d,3-a,4-b
0.16 g of dibasic acid required 25 ml of decinormal solution for complete neutralisation. The modecular weight of the acid will be
Option: 1
32
Option: 2
64
Option: 3
128
Option: 4
256
0xone is
Option: 1
Option: 2
Option: 3
Option: 4
Begin a career in Medical and Allied Sciences. Admissions Open for
NAAC A+ Accredited| Ranked #24 in University Category by NIRF | Applications open for multiple UG & PG Programs
Amity University-Noida Health and Allied Sciences Admissions
ApplyAmongst top 3% universities globally (QS Rankings) | Wide Range of scholarships available
NEET Notifications
Never miss NEET update
Get timely NEET updates directly to your inbox. Stay informed!