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प्रश्न
Give reason for the following:
Gases have a lower density compared to solids or liquids.
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उत्तर
Gases have low densities as the inter-molecular distance between the molecules of gases is very large.
Pressure on the wall = `("Force exerted on the wall")/("Total area of the container wall")`
संबंधित प्रश्न
Convert the following pressure value into Pascals.
107000 Nm−2
Convert 101.325 kPa to bar.
Identify the gas laws from the following diagram.
| Diagram | Gas laws |
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Consider a sample of a gas in a cylinder with a movable piston.

Show diagrammatically the changes in the position of the piston, if the temperature is decreased from 400 K to 300 K, and pressure is decreased from 4 bar to 3 bar.
Write the statement for Charles’ law
With the help of the graph answer the following -

At constant temperature, Write the statement of law.
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?

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.
For a given mass of an ideal gas, which of the following statements is CORRECT?
According to Andrews isothermals, the minimum temperature at which carbon dioxide gas obeys Boyles law is ______.

