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Critical temperature of a substance is d...

Critical temperature of a substance is defined as :

A

the temperature above which a substance decomposes

B

the substance can exist only as a gas

C

melting point of the substance

D

boiling point of the substance.

Text Solution

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The correct Answer is:
B
Above the critical temperature, a substance exists only as a gas and cannot be liquefied.
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DINESH PUBLICATION-STATES OF MATTER : GASES AND LIQUIDS-Select the correct answer
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  3. Critical temperature of a substance is defined as :

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  4. NH(3) can be liquefied at ordinary temperature without the application...

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  5. The constant 'a' in van der Waal's equation is maximum in

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  6. Which set of conditions represent the easiest way to cool a gas ?

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  7. The term which accounts for intermolecular force in van der Waal's equ...

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  8. As the temperature is raised from 20^(@)C to 40^(@)C the averge kineti...

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  9. In van der Waals' equation of state of the gas law the constnat 'b' is...

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  10. The volume of a certain mass of gas at N.T.P. is 27.5 cm^(3). What pre...

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  11. At 27^(@)C under one atmosphere pressure, a gas occupies a volume of V...

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  12. Hydrogen gas occupies a volume of 18 litres at 27^(@)C and under a pr...

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  13. what volume of hydrogen gas , at 273 K and 1 atm pressure will be con...

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  14. Which one of the following statement is not true about the effect of a...

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  15. Equal masses of methane and oxygen are mixed in an empty container at ...

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  16. The density of a gas a is twice that of gas B. Molecular mass of A is ...

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  17. At what temperature, the r.m.s. velocity of a gas measured at 50^(@)C ...

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  18. The compressibility factor for a real gas at high pressure is .

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  19. Mass of 112 cm^(3) of NH(3) gas at S.T.P. is

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  20. For gaseous state, if most probable speed is denoted by C^(**) average...

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