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Previous year question hub

Thermodynamics - Physical Chemistry - Chemistry Previous Year Questions

Practice Thermodynamics - Physical Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

36Papers
27Years
88Questions
1Topics

Thermodynamics question pattern

Every graph below is calculated only from this selection.

Questions by year

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

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 85 96.6%
Easy 2 2.3%
Medium 1 1.1%

Question type distribution

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

Multiple Choices 88 100%

Subject weightage

Top subjects by unique question coverage.

Chemistry
88 Qs

Most asked topics

Top topics across the included previous year papers.

Physical Chemistry
88 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Thermodynamics
88 Qs

Paper coverage

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

NEET 2026
2 Qs
NEET 2025
2 Qs
NEET 2024
3 Qs
NEET 2024 RE EXAMINATION
3 Qs
NEET 2023
2 Qs
NEET 2023 MANIPUR
1 Qs
NEET 2022 PHASE 2
2 Qs
NEET 2022 Phase 1
1 Qs
NEET 2021
2 Qs
NEET 2020 PHASE 1
3 Qs
AIIMS 2019
3 Qs
NEET 2019
2 Qs
AIIMS 2018
2 Qs
NEET 2018
1 Qs
NEET 2017
2 Qs
NEET 2016 PHASE 1
1 Qs
NEET 2016 PHASE 2
1 Qs
AIPMT 2015
1 Qs
AIPMT 2014
2 Qs
NEET 2013 KARNATAKA
2 Qs
NEET 2013
1 Qs
AIPMT 2012 PRELIMS
3 Qs
AIPMT 2011 PRELIMS
3 Qs
AIPMT 2011 MAINS
1 Qs
AIPMT 2010 MAINS
4 Qs
AIPMT 2010 PRELIMS
2 Qs
AIPMT 2009
2 Qs
AIPMT 2008
3 Qs
AIPMT 2007
2 Qs
AIPMT 2006
4 Qs
AIPMT 2005
3 Qs
AIPMT 2004
4 Qs
AIPMT 2003
6 Qs
AIPMT 2002
5 Qs
AIPMT 2001
4 Qs
AIPMT 2000
3 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 202520252View paper
NEET 202420243View paper
NEET 2024 RE EXAMINATION20243View paper
NEET 202320232View paper
NEET 2023 MANIPUR20231View paper
NEET 2022 Phase 120221View paper
NEET 2022 PHASE 220222View paper
NEET 202120212View paper
NEET 2020 PHASE 120203View paper
AIIMS 201920193View paper
NEET 201920192View paper
AIIMS 201820182View paper
NEET 201820181View paper
NEET 201720172View paper
NEET 2016 PHASE 120161View paper
NEET 2016 PHASE 220161View paper
AIPMT 201520151View paper
AIPMT 201420142View paper
NEET 201320131View paper
NEET 2013 KARNATAKA20132View paper
AIPMT 2012 PRELIMS20123View paper
AIPMT 2011 MAINS20111View paper
AIPMT 2011 PRELIMS20113View paper
AIPMT 2010 MAINS20104View paper
AIPMT 2010 PRELIMS20102View paper
AIPMT 200920092View paper
AIPMT 200820083View paper
AIPMT 200720072View paper
AIPMT 200620064View paper
AIPMT 200520053View paper
AIPMT 200420044View paper
AIPMT 200320036View paper
AIPMT 200220025View paper
AIPMT 200120014View paper
AIPMT 200020003View paper

All Thermodynamics previous year questions

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

1
2000 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2000
2Zn + O2 \(\to\) 2ZnO;  \(\Delta\)Go = \(-\) 616 J
2Zn + S2 \(\to\) 2ZnS;  \(\Delta\)Go = \(-\) 293 J
S2 + 2O2 \(\to\) 2SO2;   \(\Delta\)Go = \(-\)408 J
\(\Delta\)Go for the following reaction
2ZnS + 3O2 \(\to\)  2ZnO + 2SO2 is
A
\(-\) 731 J
B
\(-\) 1317 J
C
\(-\) 501 J
D
+ 731 J
Open complete paper
2
2000 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2000
For the reaction,
C2H5OH(l) + 3O2(g) \(\to\) 2CO2(g) + 3H2O(l)
which one is true
A
\(\Delta\)H = \(\Delta\)E \(-\)RT
B
\(\Delta\)H = \(\Delta\)E + RT
C
\(\Delta\)H = \(\Delta\)E + 2RT
D
\(\Delta\)H = \(\Delta\)E \(-\) 2RT
Open complete paper
3
2000 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2000
The entropy change in the fusion of one mole of a solid melting at 27oC (latent heat of fusion is 2930 J mol–1) is :
A
9.77 J/mol-K
B
10.77 J/mol-K
C
9.07 J/mol-K
D
0.977 J/mol-K
Open complete paper
4
2001 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2001
Change in enthalpy for reaction,

2H2O2(l) \(\to\) 2H2O(l) + O2(g)

if heat of formation of H2O2(l) and H2O(l) are \(-\)188 and - 286 kJ/mol respectively, is
A
\(-\) 196 kJ/mol
B
+ 196 kJ/mol
C
+948 kJ/mol
D
\(-\) 948 kJ/mol
Open complete paper
5
2001 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2001
Enthalpy of CH4 + \({1 \over 2}\) O2 \(\to\) CH3OH is negative. If enthalpy of combustion of CH4 and CH3OH are x and y respectively. Then which relation is correct?
A
x > y
B
x < y
C
x = y
D
x3 y
Open complete paper
6
2001 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2001
PbO2  \(\to\) PbO; \(\Delta\)G298 < 0
SnO2 \(\to\) SnO;  \(\Delta\)G298 > 0

Most probable oxidation state of Pb and Sn will be
A
Pb4+, Sn4+
B
Pb4+, Sn2+
C
Pb2+, Sn2+
D
Pb2+, Sn4+
Open complete paper
7
2001 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2001
When 1 mol of gas is heated at constant volume temperature is raised from 298 to 308 K. Heat supplied to the gas is 500 J. Then which statement is correct ?
A
q = w = 500 J, \(\Delta\)E = 0
B
q = \(\Delta\)E = 500 J, w = 0
C
q = w = 500 J, \(\Delta\)E = 0
D
\(\Delta\)E = 0, q = w = \(-\) 500 J
Open complete paper
8
2002 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2002
Heat of combustion \(\Delta\)Ho for C(s), H2(g) and CH4(g) are \(-\) 94, \(-\) 68 and \(-\)213 kcal/mol, then \(\Delta\)Ho for C(s) + 2H2(g) \(\to\) CH4(g) is
A
\(-\)17 kcal
B
\(-\)111 kcal
C
\(-\)170 kcal
D
\(-\)85 kcal
Open complete paper
9
2002 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2002
In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true ?
A
\(\Delta\)E = W \(\ne\) 0, q = 0
B
\(\Delta\)E = w = q \(\ne\) 0
C
\(\Delta\)E = 0, W = q \(\ne\) 0
D
W = 0, \(\Delta\)E = q \(\ne\) 0.
Open complete paper
10
2002 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2002
Unit of entropy is
A
J K\(-\)1 mol\(-\)1
B
J mol\(-\)1
C
J\(-\)1 K\(-\)1 mol\(-\)1
D
J K mol\(-\)1
Open complete paper
11
2002 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2002
2 mole of ideal gas at 27oC temperature is expanded reversibly from 2 lit. to 20 lit. Find entropy change. (R = 2 cal/mol K)
A
92.1
B
0
C
4
D
9.2
Open complete paper
12
2002 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2002
Which reaction is not feasible?
A
2KI + Br2 \(\to\) 2KBr + I2
B
2KBr + I2 \(\to\) 2KI + Br2
C
2KBr + Cl2 \(\to\) 2KCl + Br2
D
2H2O + 2F2 \(\to\) 4HF + O2
Open complete paper
13
2003 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2003
For the reaction,
C3H8(g) + 5O2(g) \(\to\) 3CO2(g) + 4H2O(l)
at constant temperature, \(\Delta\)H \(-\) \(\Delta\)E is
A
+ RT
B
\(-\)3RT
C
+ 3RT
D
\(-\) RT
Open complete paper
14
2003 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2003
What is the entropy change (in J K\(-\)1 mol\(-\)1) when one mole of ice is converted into water at 0oC? (The enthalpy change for the conversion of ice to liquid water is 6.0 kJ mol\(-\)1 at 0oC).
A
20.13
B
2.013
C
2.198
D
21.98
Open complete paper
15
2003 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2003
The molar heat capacity of water at constant pressure, C, is 75 J K\(-\)1 mol\(-\)1. When 1.0 kJ of heat is supplied to 100 g of water which is free to expand, the increase in temperature of water is
A
1.2 K
B
2.4 K
C
4.8 K
D
6.6 K
Open complete paper
16
2003 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2003
For which one of the following equations is \(\Delta\)Horeact equal to \(\Delta\)Hof for the product ?
A
Xe(g) + 2F2(g) \(\to\) XeF4(g)
B
2CO(g) + O2(g) \(\to\) 2CO2(g)
C
N2(g) + O3(g) \(\to\) N2O3(g)
D
CH4(g) + 2Cl2(g) \(\to\) CH2Cl2(l) + 2HCl(g)
Open complete paper
17
2003 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2003
Formation of solution from two components can be considered as
(i) Pure solvent \(\to\) separated solvent molecules, \(\Delta\)H1
(ii) Pure solute \(\to\) separated solute molecules, \(\Delta\)H2
(iii) Separated solvent and solute molecules \(\to\) solution, \(\Delta\)H3
Solution so formed will be ideal if
A
\(\Delta\)Hsoln = \(\Delta\)H1 + \(\Delta\)H2 + \(\Delta\)H3
B
\(\Delta\)Hsoln = \(\Delta\)H1 + \(\Delta\)H2 \(-\) \(\Delta\)H3
C
\(\Delta\)Hsoln = \(\Delta\)H1 \(-\) \(\Delta\)H2 \(-\) \(\Delta\)H3
D
\(\Delta\)Hsoln = \(\Delta\)H3 \(-\) \(\Delta\)H1 \(-\) \(\Delta\)H2
Open complete paper
18
2003 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2003
The densities of graphite and diamond at 298 K are 2.25 and 3.31 g cm\(-\)3, respectively. If the standard free energy difference \(\left( {\Delta {G^o}} \right)\) is equal to 1895 J mol\(-\)1, the pressure at which graphite will be transformed into diamond at 298 K is
A
11.14 \(\times\) 108 Pa
B
11.14 \(\times\) 107 Pa
C
11.14 \(\times\) 106 Pa
D
11.14 \(\times\) 105 Pa
Open complete paper
19
2004 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2004
The work done during the expansion of a gas from a volume of 4 dm3 to 6 dm3 against a constant external pressure of 3 atm is (1 L atm = 101.32 J)
A
\(-\) 6 J
B
\(-\) 608 J
C
+ 304 J
D
\(-\) 304 J
Open complete paper
20
2004 · Chemistry · Physical Chemistry · Thermodynamics
AIPMT 2004
If the bond energies of H \(-\) H, Br \(-\) Br, and H \(-\) Br are 433, 192 and 364 kJ mol\(-\)1 respectively, the \(\Delta\)Ho for the reaction

H2(g) + Br2(g) \(\to\) 2HBr(g) is
A
\(-\) 261 kJ
B
+103 kJ
C
+261 kJ
D
\(-\)103 kJ
Open complete paper

Showing 20 of 88 questions