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Physics 9 Online
OpenStudy (anonymous):

5 kg of water is heated from 20 C to 90 C (293 and 327 K). The density of the water decreases from 998,3 kg/m^3 to 965 kr/m^3. How much pressure-volume work is done by the system? I think I'm supposed to use the formula: W = p * dV V (volume) = (5/965) - (5/998,3) But how do I get pressure? That would seem to require the dimensions of the water, which I don't have. Or maybe I'm using the wrong formula?

OpenStudy (anonymous):

dimensions of water mean??

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