Example 1 · difficulty 4/5
A monatomic ideal gas (γ = 5/3) initially at 300 K is compressed adiabatically and reversibly to one-eighth of its original volume. The final temperature of the gas is:
- A. 600 K
- B. 9600 K
- C. 75 K
- D. 1200 K
2018 source guide · Physics
NEET 2018 Physics Thermodynamics Questions
Use this page to connect the official 2018 paper with current Physics practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.
What to master
state variables, heat, work, thermodynamic processes and heat engines.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 1/5
Two bodies A and B are separately in thermal equilibrium with a third body C. What follows from the zeroth law of thermodynamics?
- A. A and B are in thermal equilibrium with each other
- B. A and B must have equal masses
- C. A and B must contain equal internal energies
- D. Heat must continuously flow from A to B
Example 3 · difficulty 1/5
A thermometer is placed in contact with a body and its reading becomes steady. What does the steady reading signify?
- A. The thermometer and body have equal internal energies
- B. The thermometer and body are in thermal equilibrium
- C. The thermometer has absorbed all the body's heat
- D. The body has reached absolute zero
The evidence-first practice loop
- 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
- 2. Attempt closed-bookExpose the concept or execution gap before rereading.
- 3. Repair and returnClassify the miss and re-practice after a delay.
Canonical chapter practice
Frequently asked questions
Are these official NEET 2018 Physics Thermodynamics PYQs?
No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.
How should I use the NEET 2018 paper?
Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.