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18 October, 00:06

What is the vapor pressure of water at 750C?

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  1. 18 October, 00:14
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    There's not really enough information to answer your question.

    I assume you're asking what the pressure of water vapor would be at 750C, which would require the use of the universal gas law.

    PV = nRT, where P is the pressure of the gas, V is the volume, n is the number of mols of gas you have, R is the universal gas constant, and T is the temperature.

    It can be rearranged to be P = (nRT) / V

    And you could find each variable independently to find the pressure.

    R is 8.314, as it always is (being a universal constant)

    n can be found using n=m/18.02, where m is the mass of gas you're measureing

    V is the volume of whatever container you're using, if it's a geometric shape you can just measure it

    T is 750 + 273.15 = 1023.15, because temperature is always in kelvin and it was given in celecius in the question.
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