Chemistry · JEE

Chemical Thermodynamics Previous Year Questions for JEE

14+ syllabus-aligned questions available

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Goodmarks offers 14+ JEE-style PYQs for Chemical Thermodynamics with detailed solutions. While official past papers rotate yearly, our bank covers the same concepts, difficulty, and question formats tested in JEE Chemistry.

Previous year questions are the fastest way to understand how Chemical Thermodynamics is tested in JEE. Practise 14+ exam-pattern MCQs modelled on JEE Main and Advanced, with full solutions for every question.

Subtopics in Chemical Thermodynamics

Fundamentals of thermodynamics: System and surroundings, extensive and intensive properties, state functions, entropy, types of processes
The first law of thermodynamics: Concept of work, heat, internal energy and enthalpy, heat capacity, molar heat capacity
Hess's law of constant heat summation
Enthalpies of bond dissociation, combustion, formation, atomization, sublimation, phase transition, hydration, ionization and solution
The second law of thermodynamics: Spontaneity of processes, Delta S of the universe and Delta G of the system as criteria for spontaneity
Delta G° (Standard Gibbs energy change) and equilibrium constant

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Q1ChemistryUnit 4: Chemical Thermodynamics

The plot shows the variation of

-\ln \boldsymbol{K}_{\boldsymbol{p}}

versus temperature for the two reactions.

M(s)+\frac{1}{2} O_{2}(g) \rightarrow M O(s)

and

C(s)+\frac{1}{2} O_{2}(g) \rightarrow C O(s)

Identify the correct statement?

Q2ChemistryUnit 4: Chemical Thermodynamics

An ideal gas is compressed in a closed container its U?

Q3ChemistryUnit 4: Chemical Thermodynamics

A system is said to be in thermodynamic equilibrium with Surrounding ¡f

Q4ChemistryUnit 4: Chemical Thermodynamics

Assertion The change in internal energy and change in heat enthalpy does not depend upon the path by which changes are brought in. Reason Both

\Delta U

and

\Delta H

are path independent as U and H are state functions.

Q5ChemistryUnit 4: Chemical Thermodynamics

For a given reaction,

\boldsymbol{H}_{2} \boldsymbol{O}(l) \rightleftharpoons

H_{2} O(s) a t 0^{\circ} C

and 1 bar, which of the following is true?

Q6ChemistryUnit 4: Chemical Thermodynamics

Assertion Adsorption is exothermic and spontaneous inspite of the fact that adsorption is accompained with decrease in entropy. Reason The factor

T \Delta S

is lesser than

\Delta H

Q7ChemistryUnit 4: Chemical Thermodynamics

When fuel is added to the exhaust (burnt) gases in a jet engine combustion takes place. Some facts are mentioned here about this combustion. Pick the false one?

Q8ChemistryUnit 4: Chemical Thermodynamics

Which of the following equations corresponds to the definition of enthalpy of formation at

298 K ?

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Frequently asked questions

Why practise PYQs for Chemical Thermodynamics?

PYQs reveal recurring concepts, common traps, and the difficulty level JEE expects. Solving them builds exam temperament and time management.

Does Goodmarks have actual JEE past papers?

Our bank includes exam-style MCQs aligned with JEE Main Chemistry syllabus for Chemical Thermodynamics, covering the same topics as previous year papers.

How should I use PYQs for Chemical Thermodynamics?

Solve timed sets, review every explanation, note weak subtopics, then revisit with focused practice on Goodmarks.

Are PYQ solutions step-by-step?

Yes. Every question includes the correct answer and a detailed explanation showing the reasoning.