Question
Explain briefly, how gases can be liquefied.
✓
Answer
Gases can be liquefied by applying pressure and lowering temperature. The temperature needs to be lowered because when the gas is compressed too much, then heat is produced due to compression. Cooling lowers the temperature of the compressed gas and helps in liquefying it.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Explain why, a small volume of water in a kettle can fill a kitchen with steam.
Name two gases of air which dissolve in water by diffusion. What is the importance of this process in nature?
- Compare the properties of solids, liquids and gases in tabular form.
- Give two reasons for saying that wood is a solid.
During class, the students resemble molecules in a solid (because they are very close to one another)
While going from one classroom to another the students resemble molecules in a liquid (because they are a little more father apart from one another)
With the help of example, explain the law of conservation of mass.
Which of the following pair is are isobars?
→-
$^{58}_{26}\text{A},\ ^{58}_{28}\text{B}$
-
$^{79}_{35}\text{X},\ ^{80}_{35}\text{Y}$
Explain why, hydrogen and oxygen are considered elements whereas water is not considered an element.
Which postulate of Dalton’s atomic theory is the result of the law of conservation of mass?
Explain the following:
When an incense stick is lighted in the corner of room, its fragrance spreads quickly in the entire room.
When an incense stick is lighted in the corner of room, its fragrance spreads quickly in the entire room.
Describe Thomson’s model of the atom. Which subatomic particle was not present in Thomson’s model of the atom?
What do you observe in the china dish during crystallization?