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Previous year question hub

Heat And Thermodynamics - Mechanics - Physics Previous Year Questions

Practice Heat And Thermodynamics - Mechanics - Physics previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

39Papers
27Years
103Questions
1Topics

Heat And Thermodynamics question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Heat And Thermodynamics. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 95 92.2%
Easy 4 3.9%
Medium 3 2.9%
Hard 1 1%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Multiple Choices 103 100%

Subject weightage

Top subjects by unique question coverage.

Physics
103 Qs

Most asked topics

Top topics across the included previous year papers.

Mechanics
103 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Heat And Thermodynamics
103 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

NEET 2026
2 Qs
NEET 2025
4 Qs
NEET 2024 RE EXAMINATION
3 Qs
NEET 2024
2 Qs
NEET 2023
2 Qs
NEET 2023 MANIPUR
2 Qs
NEET 2022 PHASE 2
3 Qs
NEET 2022 Phase 1
2 Qs
NEET 2021
2 Qs
NEET 2020 PHASE 1
5 Qs
AIIMS 2019
8 Qs
NEET 2019
2 Qs
AIIMS 2018
4 Qs
NEET 2018
4 Qs
AIIMS 2017
6 Qs
NEET 2017
3 Qs
NEET 2016 PHASE 1
3 Qs
NEET 2016 PHASE 2
3 Qs
AIPMT 2015 Cancelled Paper
4 Qs
AIPMT 2015
3 Qs
AIPMT 2014
3 Qs
NEET 2013
4 Qs
NEET 2013 KARNATAKA
4 Qs
AIPMT 2012 PRELIMS
2 Qs
AIPMT 2012 MAINS
1 Qs
AIPMT 2011 PRELIMS
2 Qs
AIPMT 2011 MAINS
1 Qs
AIPMT 2010 MAINS
2 Qs
AIPMT 2010 PRELIMS
1 Qs
AIPMT 2009
2 Qs
AIPMT 2008
2 Qs
AIPMT 2007
1 Qs
AIPMT 2006
2 Qs
AIPMT 2005
2 Qs
AIPMT 2004
2 Qs
AIPMT 2003
1 Qs
AIPMT 2002
1 Qs
AIPMT 2001
1 Qs
AIPMT 2000
2 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
NEET 202620262View paper
NEET 202520254View paper
NEET 202420242View paper
NEET 2024 RE EXAMINATION20243View paper
NEET 202320232View paper
NEET 2023 MANIPUR20232View paper
NEET 2022 Phase 120222View paper
NEET 2022 PHASE 220223View paper
NEET 202120212View paper
NEET 2020 PHASE 120205View paper
AIIMS 201920198View paper
NEET 201920192View paper
AIIMS 201820184View paper
NEET 201820184View paper
AIIMS 201720176View paper
NEET 201720173View paper
NEET 2016 PHASE 120163View paper
NEET 2016 PHASE 220163View paper
AIPMT 201520153View paper
AIPMT 2015 Cancelled Paper20154View paper
AIPMT 201420143View paper
NEET 201320134View paper
NEET 2013 KARNATAKA20134View paper
AIPMT 2012 MAINS20121View paper
AIPMT 2012 PRELIMS20122View paper
AIPMT 2011 MAINS20111View paper
AIPMT 2011 PRELIMS20112View paper
AIPMT 2010 MAINS20102View paper
AIPMT 2010 PRELIMS20101View paper
AIPMT 200920092View paper
AIPMT 200820082View paper
AIPMT 200720071View paper
AIPMT 200620062View paper
AIPMT 200520052View paper
AIPMT 200420042View paper
AIPMT 200320031View paper
AIPMT 200220021View paper
AIPMT 200120011View paper
AIPMT 200020002View paper

All Heat And Thermodynamics previous year questions

Practice every matching question in batches of 20, with every available option.

1
2000 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2000
The (W/Q) of a Carnot engine is 1/6, now the temperature of sink is reduced by 62oC, then this ratio becomes twice, therefore the initial temperature of the sink and source are respectively
A
33oC, 67oC
B
37oC, 99oC
C
67oC, 33oC
D
97 K, 37 K
Open complete paper
2
2000 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2000
To find out degree of freedom, the expansion is
A
\(f = {2 \over {\gamma - 1}}\)
B
\(f = {{\gamma + 1} \over 2}\)
C
\(f = {2 \over {\gamma + 1}}\)
D
\(f = {1 \over {\gamma + 1}}\)
Open complete paper
3
2001 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2001
A scientist says that the efficiency of his heat engine which work at source temperature 127oC and sink temperature 27oC is 26%, then
A
it is impossible
B
it is possible but less probable
C
it is quite probable
D
data are incomplete.
Open complete paper
4
2002 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2002
The efficiency of Carnot engine is 50% and temperature of sink is 500 K. If temperature of source is kept constant and its efficiency raised to 60%, then the required temperature of sink will be
A
100 K
B
600 K
C
400 K
D
500 K
Open complete paper
5
2003 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2003
An ideal gas heat engine operates in a Carnot cycle between 227oC and 127oC. It absorbs 6 kcal at the height temperature. The amount of heat (in kcal) converted into work is equal to
A
4.8
B
3.5
C
1.6
D
1.2
Open complete paper
6
2004 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2004
One mole of an ideal gas at an initial temperature of T K does 6R joule of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is 5/3, the final temperature of gas will be
A
(T + 2.4) K
B
(T \(-\) 2.4) K
C
(T + 4) K
D
(T \(-\) 4) K
Open complete paper
7
2004 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2004
The equation of state for 5 g of oxygen at a pressure P and temperature T, when occupying a volume V, will be
(where R is the gas constant)
A
PV = (5/32)RT
B
PV = 5RT
C
PV = (5/2)RT
D
PV = (5/16) RT
Open complete paper
8
2005 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2005
Which of the following processes is reversible?
A
Transfer of heat by conduction
B
Transfer of heat by radiation
C
Isothermal compression
D
Electrical heating of a nichrome wire.
Open complete paper
9
2005 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2005
An ideal gas heat engine operates in Carnot cycle between 227oC and 127oC. It absorbs 6 \(\times\) 104 cal of heat at higher temperature. Amount of heat converted to work is
A
4.8 \(\times\) 104 cal
B
6 \(\times\) 104 cal
C
2.4 \(\times\) 104 cal
D
1.2 \(\times\) 104 cal.
Open complete paper
10
2006 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2006
The molar specific heat at constant pressure of an ideal gas is (7/2) R. The ratio of specific heat at constant pressure to that at constant volume is
A
9/7
B
7/5
C
8/7
D
5/7
Open complete paper
11
2006 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2006
A Carnot engine whose sink is at 300 K has an efficiency of 40%. By how much should the temperature of source be increased so as to increase its efficiency by 50% of original efficiency ?
A
380 K
B
275 K
C
325 K
D
250 K
Open complete paper
12
2007 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2007
An engine has an efficiency of 1/6. When the temperature of sink is reduced by 62oC, its efficiency is doubled. Temperatures of the source is
A
37oC
B
62oC
C
99oC
D
124oC.
Open complete paper
13
2008 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2008
At 10oC the value of the density of a fixed mass of an ideal gas divided by it pressure is x. At 110oC this ratio is
A
\({{10} \over {110}}x\)
B
\({{283} \over {383}}x\)
C
\(x\)
D
\({{383} \over {283}}x\)
Open complete paper
14
2008 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2008
If Q, E and W denote respectively the heat added, change in internal energy and the work done in a closed cyclic process, then
A
E = 0
B
Q = 0
C
W = 0
D
Q = W = 0
Open complete paper
15
2009 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2009
In thermodynamic processes which of the following statements is not true ?
A
In an isochoric process pressure remains constant.
B
In an isothermal process the temperature remains constant.
C
In an adiabatic process PV\(\gamma\) = constant.
D
In an adiabatic process the system is insulated from the surroundings.
Open complete paper
16
2009 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2009
The internal energy change in a system that has absorbed 2 kcal of heat and done 500 J of work is
A
6400 J
B
5400 J
C
7900 J
D
8900 J
Open complete paper
17
2010 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2010 MAINS
A monatomic gas at pressure P1 and volume V1 is compressed adiabatically to \({{1 \over 8}^{th}}\) of its original volume. What is the final pressure of the gas?
A
64P1
B
P1
C
16P1
D
32P1
Open complete paper
18
2010 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2010 MAINS
If cp and cv denote the specific heats (per unit mass of an ideal gas of molecular weight M, then
A
cp \(-\) cv = R/M2
B
cp \(-\) cv = R
C
cp \(-\) cv = R/M
D
cp \(-\) cv = MR
Open complete paper
19
2010 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2010 PRELIMS
If \(\Delta\)U and \(\Delta\)W represent the increase in internal energy and work done by the system respectively in a thermodynamical process, which of the following is true ?
A
\(\Delta\)U = \(-\)\(\Delta\)W, in an adiabtic process
B
\(\Delta\)U = \(\Delta\)W, in an isothermal process
C
\(\Delta\)U = \(\Delta\)W, in an adiabatic process
D
\(\Delta\)U = \(-\) \(\Delta\)W, in an isothermal process
Open complete paper
20
2011 · Physics · Mechanics · Heat And Thermodynamics
AIPMT 2011 MAINS
A mass of diatomic gas \((\gamma = 1.4)\) at a pressure of 2 atmospheres is compressed adiabatically so that its temperature rises from 27oC to 927oC. The pressure of the gas in the final state is
A
8 atm
B
28 atm
C
68.7 atm
D
256 atm
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Showing 20 of 103 questions