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What is the SI unit of pressure ? Define...

What is the SI unit of pressure ? Define it.

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Pa or `Nm^(-2)`
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ICSE-STATES OF MATTER : GASES AND LIQUIDS-VERY SHORT ANSWER TYPE QUESTIONS
  1. Name the three physical states of matter.

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  2. Can a substance exist in all the three states of matter? Give an examp...

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  3. What is the relation between mass and number of moles of a gas?

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  4. Define the term volume of an object.

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  5. Express one atm pressure in terms of the height of mercury column.

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  6. What is the SI unit of pressure ? Define it.

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  7. State the relation between atm, Nm, Pa, torr and bar.

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  8. Name the apparatus used for the measurement of the pressure of a gas.

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  9. What do you understand by S.T.P. ?

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  10. What is the shape of the curve obtained on plotting P against PV at co...

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  11. Which law is signified by the relation V1/T1 = V2/T2 ?

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  12. Name the scientist who introduced absolute scale of temperature.

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  13. What is the general unit of gas constant R?

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  14. What happens when a jar full of H2 gas is placed inverted over a jar ...

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  15. State the following : Absolute temperature of a gas at 7^@C.

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  16. How are the different types of velocities of a gas molecules related w...

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  17. Define compressibility factor of a gas.

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  18. Is the excluded volume of a real gas equal to the actual E volume of t...

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  19. State and explain the pressure-temperature law.

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  20. The pressure of a real gas is less than the pressure of an ideal gas b...

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