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22 January, 08:59

A fixed amount of ideal gas is kept in a container of fixed volume. The absolute pressure P, in pascals, of the gas is plotted as a function of its temperature T, in degrees Celsius. Which of the following are properties of a best fit curve to the data? Select two answers.

A) Having a positive slope

B) Passing through the origin

C) Having zero pressure at a certain negative temperature

D) Approaching zero pressure as temperature approaches infinity

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  1. 22 January, 09:24
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    A) Having a positive slope

    D) Approaching zero pressure as temperature approaches infinity

    Explanation:

    A fixed amount of ideal gas is kept in a container of fixed volume. The absolute pressure P, in pascals, of the gas is plotted as a function of its temperature T, in degrees Celsius. Which of the following are properties of a best fit curve to the data? Select two answers.

    A) Having a positive slope

    B) Passing through the origin

    C) Having zero pressure at a certain negative temperature

    D) Approaching zero pressure as temperature approaches infinity

    solution

    from the ideal gas equation

    PV=nRT

    P=pressure

    T=absolute temperature in kelvin

    V=volume

    R=gas constant 8.314j/molK

    n=mole = mass/molecular mass

    P=nRT/V

    nR/V is the constant

    P=nR (Tc+273) / V

    plotting the graph we will discover that as pressure increases, temperature also increases. which means it's a positive graph.

    Also Approaching zero pressure as temperature approaches infinity
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