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Friday, 9 October

NEET UG 2017 · Chemistry · Question 60

NEET 2017 Chemistry, question 60

Question 60 of the NEET 2017 paper (code A) is a Chemistry question from Thermodynamics. Its idea, First Law: Delta U = q + w, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 3.

Updated 2026-10-08

Q60 · Chemistry

A gas is allowed to expand in a well insulated container against a constant external pressure of 2.5 atm from an initial volume of 2.50 L to a final volume of 4.50 L. The change in internal energy ΔU\Delta U of the gas in joules will be :

  1. 11136.25 J
  2. 2−500-500 J
  3. 3−505-505 JOfficial answer
  4. 4+505+505 J

Official answer: option 3 · CBSE official answer key

Same idea

The only question on First Law: Delta U = q + w

No other NEET paper from 2017–2026 tested this exact idea.

First Law: Delta U = q + w: every question and how it was framed

The chapter

Thermodynamics in ten years of NEET

32 questions from 2017–2026, asked in 10 of 10 papers, about 3.1 a paper. First Law of Thermodynamics alone had 8.

Thermodynamics: questions per paper

0364’174’183’193’202’212’222’234’243’255’26