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प्रश्न
Give reason for the following:
Gases exert pressure in all directions.
Gases unlike solids and liquids exert pressure in all directions.
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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
Convert the following temperature from degree Celcius to kelvin.
−15° C
Convert 101.325 kPa to bar.
Identify the gas laws from the following diagram.
| Diagram | Gas laws |
 |
______________ |
Identify the gas laws from the following diagram.
| Diagram | Gas laws |
 |
______________ |
Solve the following.
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State Boyle's law.
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Sulphur hexafluoride is a colourless, odourless gas; calculate the pressure exerted by 1.82 moles of the gas in a steel vessel of volume 5.43 dm3 at 69.5 °C, assuming ideal gas behaviour
A gas occupies a volume of 4.2 dm3 at 101 kPa pressure. What volume will gas occupy if the pressure is increased to 235 kPa keeping the temperature constant?
