Explain why evaporation is accompanied by cooling.

Question

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Answer 1

Actually, evaporation is a cooling process because when liquid turns to gas, it needs more energy and so it has to take that energy from its surrounding. The energy is in the form of heat and when the energy (heat) leaves with the evaporating liquid; surrounding gets cooler.

Answer 2

Actually, evaporation is a cooling process because when liquid turns to gas, it needs more energy and so it has to take that energy from its surrounding. The energy is in the form of heat and when the energy (heat) leaves with the evaporating liquid; surrounding gets cooler.

Explain why evaporation is accompanied by cooling.

Actually, evaporation is a cooling process because when liquid turns to gas, it needs more energy and so it has to take that energy from its surrounding. The energy is in the form of heat and when the energy (heat) leaves with the evaporating liquid; surrounding gets cooler.

Fig. shows the variation in temperature with time when some wax cools from the liquid phase to the solid phase. What does the part QS of the curve represent ?

Explain the change of state of substances .

Water in an earthen pot cools below the room temperature due to.

Fig. shows the variation in temperature with time when some wax cools from the liquid phase to the solid phase. In which part of the curve, the wax is in liquid phase ?

Bottled soft drinks get cooled, more ............. by the ice cubes than by the iced water, both at $0^{\circ} C$ ?

Revise with Concepts

Advanced Knowledge of Change of State

Explain why evaporation is accompanied by cooling.

Actually, evaporation is a cooling process because when liquid turns to gas, it needs more energy and so it has to take that energy from its surrounding. The energy is in the form of heat and when the energy (heat) leaves with the evaporating liquid; surrounding gets cooler.

Fig. shows the variation in temperature with time when some wax cools from the liquid phase to the solid phase. What does the part QS of the curve represent ?

Explain the change of state of substances .

Water in an earthen pot cools below the room temperature due to.

Fig. shows the variation in temperature with time when some wax cools from the liquid phase to the solid phase. In which part of the curve, the wax is in liquid phase ?

Bottled soft drinks get cooled, more ............. by the ice cubes than by the iced water, both at 0∘C ?

Revise with Concepts

Advanced Knowledge of Change of State

Bottled soft drinks get cooled, more ............. by the ice cubes than by the iced water, both at $0^{\circ} C$ ?