AP BIOLOGY

ECOLOGY

CHEMICAL CYCLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Henry was having glass of water with some ice cubes in it and kept it near a window for some time. After some time, the water became warm. What is this process called?
A
condensation
B
freezing
C
melting
D
sublimation
E
evaporation
Explanation: 

Detailed explanation-1: -This happens because when the cold glass touches the hot air around, the water vapour in the air condense and form droplets on the surface of glass. Was this answer helpful?

Detailed explanation-2: -Ice floats in water because ice is less dense than water.

Detailed explanation-3: -After a while, water droplets appeared on the glass surface.

Detailed explanation-4: -This melting phase transition is an endothermic process that requires and absorbs energy from the temperature of the water. As water and ice have different temperatures, if we add them together then there will be an exchange of heat, due to which ice starts melting and water becomes cold.

Detailed explanation-5: -After sometime water drops were observed on the outer wall of the glass. Which of following is true regarding this phenomenon? This phenomenon is known as condensation. This proves that water vapour is present in air.

There is 1 question to complete.