Matter in Our Surroundings — Science STD 9 — Question
Gujarat BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings2 Marks
Question
Why does evaporation cool a liquid?
✓
Answer
Evaporation causes cooling because when a liquid evaporates, it draws or takes the latent heat of vaporisation from ‘anything’ which it touches and hence the substances or surroundings lose heat and get cooled.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.