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Asked Feb 1, 2020
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The vaporization of 1 mole of liquid water (the system) at 100.9°C, 1.00 atm, is endothermic.

 H2​O(l)+40.7kJH2​O(g)

Assume that at exactly 100.0°C and 1.00 atm total pressure, 1.00 mole of liquid water and 1.00 mole of water vapor occupy 18.80 mL and 30.62 L, respectively.

Calculate the water's change in internal energy.

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