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  9. Q97

RRB NTPC 2025 · Question 97 of 409

Why does evaporation cause cooling?

  1. ABecause evaporation increases particle size
  2. BBecause evaporation reduces air pressureCorrect
  3. CBecause particles lose heat to the surroundings during evaporation
  4. DBecause particles absorb latent heat from the surroundings during evaporation

Answer: B. Because evaporation reduces air pressure

Official answer key verified. Detailed explanation coming soon.

Source: RRB NTPC Graduate CBT-2 response sheet 13-Oct-2025 Shift-1 (candidate-shared copy of official answer-key viewing) · official-answer-key

← Q96View full paper (409 questions)Q98 →

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