2. Solved Papers
  3. BCECE Medical

BCECE Medical BCECE Medical Solved Papers-2003

  • question_answer
    A gas in an air tight container is heated from \[{{25}^{o}}C\] to \[{{90}^{o}}C\]. The density of gas will:

    A)  increase slightly

    B)  remain the same

    C)  increase considerably

    D)  decrease slightly

    Correct Answer: D

    Solution :

    When the temperature increases, the volume of container rises slightly due to thermal expansion but mass of the gas remains the same. Hence, the density \[=\left( \frac{mass}{volume} \right)\] of the gas decreases slightly.


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