(a) Only increase in temperature will help in the evaporation process. Adding sodium chloride will lower the vapour pressure and hence will lower evaporation. https://www.tiwariacademy.com/ncert-solutions-class-9-science-curiosity-chapter-1/
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(a) Only increase in temperature will help in the evaporation process. Adding sodium chloride will lower the vapour pressure and hence will lower evaporation. https://www.tiwariacademy.com/ncert-solutions-class-9-science-curiosity-chapter-1/