SSC General Science & Technology Sample Paper NCERT Sample Paper-2

  • question_answer
    What is the 'critical temperature' of water vapour?

    A)  \[0{}^\circ C\]             

    B)  less than \[100{}^\circ C\]

    C)  \[100{}^\circ C\]         

    D)  more than \[100{}^\circ C\]

    Correct Answer: D

    Solution :

    [d] The critical temperature of a substance is the temperature at and above which vapour of the substance cannot be liquefied, no matter how much pressure is applied. Every substance has a critical temperature.

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