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Why does pure water boil at 373.15 K at 1 atm?
AVapour pressure is 1 bar at 273 K
BVapour pressure reaches 1.013 bar
CIts enthalpy of boiling is zero
DIts molarity is 55.5 mol per L
Answer & Solution
Correct answer: B. Vapour pressure reaches 1.013 bar
At 373.15 K water's vapour pressure equals one atmosphere, 1.013 bar.
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