Boiling
Trending Questions
What happens to the molecules in liquids when you heat it?
The molecules start slowing down
The molecules start moving around quickly
The molecules freeze
The molecules stay still
The change from liquid to gas at any temperature is called ____________ (evaporation/boiling).
Three liquids A, B, and C, have boiling points of , respectively. Which of these will evaporate quickly?
A
B
C
None of the above
1.Give the methods that are used to separate the following mixtures:
(b) iron fillings, clay, sugar
How will you separate the constituents of a mixture containing iron fillings, sand and sulphur?
You are provided with a mixture containing sand, iron filings, ammonium chloride, and sodium chloride. Describe the procedures you would use to separate these constituents from the mixture?
Evaporation is the process of a liquid changing into vapour :
At
Only at its boiling point
Below its boiling point
Only at room temperature
A separation of sulphur from the iron filling is separated by the process of filtration.
- True
- False
What one produces more severe burns, boiling water or steam? Explain.
- Condensation
- Boiling
- All of the above
- Melting
Separate the given mixture
Iron filings, sugar and sand
How will you separate the components of a mixture comprising common salt, iron fillings and sand?
- 200C
- 500C
- 1000C
- 800C
There is no difference between evaporation and boiling.
- True
- False
- Boiling
- Freezing
- Condensation
- Melting
Nina can see gas come out of water. Hence, she might be _______ the water.
boiling
freezing
condensing
melting
Which of the following mixtures can be separated by the process of magnetic separation?
Chalk powder + sand
Iron + sand
Sulphur + calcium
Common salt + sand
Nina can see gas come out of water. Hence, she might be _______ the water.
boiling
freezing
condensing
melting
What is the temperature in Kelvin scale, at which water starts boiling, ?
0 K
100 K
273 K
373 K
Evaporation of a liquid occurs at
Its boiling point
room temperature
all temperature
below its boiling point
Differentiate between evaporation and boiling.
Differentiate between boiling and evaporation.