Advertisements
Advertisements
प्रश्न
Give reason for the following:
Gases exert pressure in all directions.
Gases unlike solids and liquids exert pressure in all directions.
Advertisements
उत्तर १
The gas particles have a very weak attractive force between them and move randomly ultimately exert pressure in all direction. Their molecules are bouncing all around the container because they are so small, then gravity has very little effect on them.
उत्तर २
Impact of gas molecules with high velocity causes pressure to be exerted on the walls.
संबंधित प्रश्न
Give reason for the following:
Gases have a lower density compared to solids or liquids.
Convert −100° C to kelvin
Identify the gas laws from the following diagram.
| Diagram | Gas laws |
![]() |
______________ |
Write the statement for Boyle’s law
With the help of the graph answer the following -

At constant temperature, the Graph shows the relationship between pressure and volume. Represent the relation mathematically.
Solve the following.
The volume of a given mass of a gas at 0°C is 2 dm3. Calculate the new volume of the gas at constant pressure when the temperature is decreased by 10°C.
Solve the following.
A hot air balloon has a volume of 2800 m3 at 99°C. What is the volume if the air cools to 80°C?

Give the mathematical expression that relates gas volume and moles.
A sample of gas at 15°C at 1 atm. has a volume of 2.58 dm3. When the temperature is raised to 38°C at 1 atm does the volume of the gas Increase? If so, calculate the final volume.
According to Andrews isothermals at what temperature the carbon dioxide gas starts to condense at 73 atmosphere?

