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KVPY Sample Paper KVPY Stream-SX Model Paper-16

  • question_answer
    Because of the relatively high altitude of Antonito, Colorado, the town has a normal barometric pressure of about 600 mm Hg rather than 760 mm Hg at sea level. The partial pressure of oxygen in Antonito's air is approximately

    A) 75mm Hg

    B) 126mm Hg

    C) 160mm Hg       

    D) 760mm Hg

    Correct Answer: B

    Solution :

    Air at sea level with an atmospheric pressure of 700 mm Hg has a partial pressure of oxygen of 160 mm Hg \[(760\times 21%)\]. Therefore, the partial pressure of \[{{\operatorname{O}}_{2}}\], at Antonito, Colorado, is \[600\times 21%=126mmHg\].


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