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Math Help - Graph Equation

  1. #1
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    Post Graph Equation

    Lost on this one, any one provide answer please:-

    P and V are related by the equation

    P= nRT / V

    where all the other quantities in the equation are constant.

    What is the gradient of a graph in which P is plotted against 1/V?
    The answer must not include brackets.

    Gradient =

    Thanks.
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  2. #2
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    Quote Originally Posted by stanton13 View Post
    Lost on this one, any one provide answer please:-

    P and V are related by the equation

    P= nRT / V

    where all the other quantities in the equation are constant.

    What is the gradient of a graph in which P is plotted against 1/V?
    The answer must not include brackets.

    Gradient =

    Thanks.
    A line has equation y=mx+c where y, x are your variable quantities, m is your gradient and c is your y-intercept.

    Your equation is in the form p = nRT.\left(\frac{1}{v}\right) + 0.

    p, \left(\frac{1}{v}\right) are your variable quantities, 0 is your y-intercept (passing through origin) and so your gradient is nRT.
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  3. #3
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    Awesome Thanks
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