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Suggest a method to liquefy atmospheric ...

Suggest a method to liquefy atmospheric gases.

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The gases can be converted into liquid by bringing its particles closer. So atmospheric gases can be liquefied either by decreasing temperature or by increasing pressure.
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Knowledge Check

  • An important method for fixing of atmospheric N_(2) is :

    A
    Fische Tropsch process
    B
    Haber process
    C
    Frasch process
    D
    Solvay process.

  • An important method of fixation of atmospheric N_2 is

    A
    Fischer - Tropsch process
    B
    Haber's process
    C
    Frasch process
    D
    Solvay process

  • Gases possess characteristic critical temperature which depends upon the magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases. {:("Gases",H_(2),He,O_(2), N_(2)),("Critical temperature in Kelvin",33.2,5.3,154.3,126):} From the above data what would be the order of liquefaction of these gases? Start writing the order from the gas liquefying first.

    A
    `H_(2), He, O_(2) , N_(2)`
    B
    `He, O_(2) , H_(2) , N_(2)`
    C
    `N_(2, O_(2) , He , H_(2)`
    D
    `O_(2) , N_(2) , H_(2) , He `

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    a. Write the balanced chemical equations for the extraction of copper metal from its ore. What is the reducing agent used? b. What is the chemical formed as green coating when copper reacts with atmospheric gases in moist conditions?

    The experimental values for specific heats of polyatomic gases are greater than the predicted values. Suggest one probable method to improve the results.

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