Question

1:. When water vaporises at room temperature, it changes to
1) Ice
2) Steam
3) Fog
4) Water vapour

2: Water droplets of size less than 1 micron, suspended in air are called
1) Fog
2) Mist
3) Dew
4) Water

3: The temperature below which the water vapour in air condenses into liquid is called
1) Melting point
2) Condensation point
3) Dew point
4) Humidity point


4: With the supply of heat energy to matter, the kinetic energy of its particles:

1) Decreases
2) Increases
3) remains same
4) Cannot be said


5: The various state of matter can be interchanged into one another by altering the
conditions of:

1) Pressure
2) Temperature
3) Volume
4) Both (1) and (2)​

Answer 1

1. water vapour

3. Condensation point

Answer 2

• 1. it change into steam