Advertisements
Advertisements
Question
Why does a gas exert pressure?
Advertisements
Solution
When gas is stored in a container, the fast moving particles of the gas collide with each other and with the walls of the container; thus, exerting pressure on the walls of container.
APPEARS IN
RELATED QUESTIONS
Give reasons:
A gas exerts pressure on the walls of the container.
Give a reason for the following observation.
Naphthalene balls disappear with time without leaving any solid.
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.
Which of the following diffuses fastest and which the slowest?
Solid, Liquid, Gas Give reasons for your answer.
Give two reasons to justify that Water is a liquid at room temperature.
A girl is cooking some food in the kitchen. The smell of food being cooked soon reaches her brother's room. Explain how the smell could have reached her brother's room.
Give one example of diffusion of gases in a liquid.
When a gas jar full of air is placed upside down on a gas jar full of bromine vapours, the red-brown vapours of bromine from the lower jar go upward into the jar containing air. In this experiment :
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?
A substance has neither a fixed shape nor a fixed volume. State whether it is a solid, a liquid or a gas.
