Evaporation

Heat of evaporation of water = 540 kcalkg Q = 50kg x 540 kcalkg Q = 27,000 kcal Answer ค่าพลังงานทั้งหมดที่ต้องการ = 3,500 + 27,000 = 35,000 กิโลแค

Key points · Evaporation occurs when a liquid slowly turns into a gas below its boiling point · Crystallisation is a separation technique used to obtain

evaporation evaporation evaporation Process by which a liquid or solid becomes a vapour The reverse process is condensation Solids and liquids cool when they evaporate

evaporation Heat of evaporation of water = 540 kcalkg Q = 50kg x 540 kcalkg Q = 27,000 kcal Answer ค่าพลังงานทั้งหมดที่ต้องการ = 3,500 + 27,000 = 35,000 กิโลแค