Thermodynamics NEET PYQs by Physics Wallah

Studying thermodynamics NEET PYQ papers is very important because this chapter is a big part of physical chemistry. Learning this chapter well helps you score points in two different subjects because the same ideas appear in both NEET Chemistry and NEET Physics. 

However, many students lose easy marks here because they make simple mistakes.  Students often get confused by the plus and minus signs, which are opposite in chemistry and physics. For example, chemistry and physics view "work done by a gas" differently. Other times, students forget to change joules into kilojoules in Gibbs free energy math problems, or they make simple addition mistakes when using Hess’s Law. 

To fix these problems, Physics Wallah gives you a collection of past NEET exam questions. We provide clear, step-by-step math answers, helpful charts that sort different properties, and quick formula sheets. These tools help you understand the exact questions asked in the exam and teach you to solve them quickly without mistakes.

PW Thermodynamics Chemistry NEET PYQs with Solution PDF

Solving real NEET exam questions will help you understand how the exam works. Students understand which topics carry more marks and what types of questions come again and again from this chapter. Click the PDF link below to learn the concepts clearly, get faster at solving problems, and practise actual exam-level questions — with answers and solutions included. 

Why Practice NEET PYQs with PW Chemistry?

Thermodynamics can feel tough, but the right practice makes it easy. PW's NEET PYQ resources help you solve real exam questions and remove all confusion around energy concepts and laws.

Here's what you get:

• Topic-Wise Practice: Solve previous-year questions one topic at a time. This helps you spot which questions keep coming back on the exam — such as identifying properties, reading pressure-volume graphs, or understanding different process types.

• Clear Math Solutions: Every numerical question comes with simple, step-by-step solutions. You'll learn exactly when to use a plus or minus sign for work and heat – so you never mix up chemistry and physics formulas again.

• Easy Revision Sheets: Revise all important formulas quickly using our short notes and mind maps. We also simply cover unit conversions — like going from joules to kilojoules — which comes in handy for Gibbs free energy problems.

• Extra Practice Questions: Test yourself with bonus questions and NCERT-based examples. This helps you handle tricky problems like Hess's Law and Thermochemistry calculations faster and with full confidence.

Core Topics Covered in Thermodynamics Chemistry NEET 

When analysing recent papers, questions from this chapter generally fall into these main categories:

1. Thermodynamic Terms and Processes

These questions test your basic knowledge of different chemical conditions. You will find straightforward matching or conceptual questions regarding isothermal, isobaric, isochoric, and adiabatic processes. You must be able to link terms like "isothermal" to constant temperature or "adiabatic" to zero heat exchange.

2. First Law of Thermodynamics and Work Done

A heavily numerical area in the exam. These questions focus on the first law of thermodynamics, the NEET formula (Delta U = q + w). You will frequently solve problems dealing with the isothermal expansion of an ideal gas, finding internal energy changes (ΔU), or analysing pressure-volume (p-V) curves to find maximum work done.

3. Thermochemistry and Enthalpy Changes

These enthalpy questions in NEET sets focus on the heat changes during chemical reactions. You will calculate enthalpies of combustion, formation, or atomisation using bond enthalpies or Hess’s Law cycles.

4. Spontaneity, Entropy, and Gibbs Free Energy

This sub-topic is purely rule-based and highly scoring. You will find Gibbs energy NEET PYQ sets asking whether a reaction happens on its own (spontaneous) based on whether Delta G is negative or if entropy (Delta S) increases when a liquid turns into a vapour.