Advertisements
Advertisements
Question
A substance has neither a fixed shape nor a fixed volume. State whether it is a solid, a liquid or a gas.
Solution
Gases have neither a fixed shape nor a fixed volume; they acquire the shape and volume of the vessel in which they are kept.
APPEARS IN
RELATED QUESTIONS
Give reasons:
We can easily move our hand in air, but to do the same through a solid block of wood, we need a karate expert.
Give a reason for the following observation.
We can get the smell of perfume sitting several metres away.
Fill in the following blank with suitable words :
At room temperature, the forces of attraction between the particles of solid substances are ....................... then those which exist in the gaseous state.
Explain why, when a bottle of perfume is opened in a room, we can smell it even from a considerable distance.
Why does a gas exert pressure?
When a gas jar containing colourless air is kept upside down over a gas jar full of brown-coloured bromine vapour, then after some time, the brown colour of bromine vapour spreads into the upper gas jar making both the gas jars appear brown in colour. Which of the following conclusion obtained from these observations is incorrect?
______ is not affected by gravity.
Comment upon the following:-
fluidity
Comment upon the following:-
density
Explain why?
- A gas fills a vessel completely?
- Camphor disappears without leaving any residue.
