At standard temperature and pressure, a given sample of water vapor occupies a volume of 2.80 L. How many hydrogen atoms are present in the container?

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answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.