Condensation

Q. An object was kept outside a shower room which had a glass window. After taking a hot shower, Raj realised, that he was not able to identify the shape of the object. Which phenomena were responsible for this?

1. Freezing made the windows transparent.
2. Evaporation made the windows transparent.
3. Condenstation made the windows translucent.
4. Evaporation made the windows opaque.

Q. The reverse process of boiling is ______.

1. melting

2. condensation

3. solidfication

4. liquefication

Q. Condensation is the process of conversion of gas to its liquid state.

1. False
2. True

Q. To clean their spectacles, people often breathe out on glasses to make them wet. Explain why the glasses become wet.

Q. Fog appearing on a cold winter morning is due to a particular phenomenon. This phenomenon is also responsible for:

1. Drying up of clothes kept near heater.
2. Deposition of water droplets on the outer surface of a glass of cold water.
3. Drying up of lakes during summer.
4. Steam rising from wet clothes while they are ironed.

Q.

Deposition of water droplets on the outer surface of a cold water glass and rainfall both happens due to the same reason.

1. False

2. True

Q. Observe the given figure.

Which of the following processes is responsible for the formation of water droplets outside the glass?

1. Evaporation
2. Cooling
3. Condensation
4. Transpiration

Q. What causes you to feel cool after you start sweating?

1. Infiltration of sweat
2. Evaporation of sweat
3. Condensation of sweat
4. Freeezing of sweat

Q. Which of the following occurs due to condensation?

1. Drying of wet clothes hanging on a rope.
2. Mirror in a bathroom turning foggy during a hot shower.
3. Steam rising from wet clothes when they are ironed.
4. Drying up of a wet black board.

Q. Dew drops on grass in the early morning appears due to condensation.

1. False
2. True