Given the equation: H2O(s) <-->H2O(l) At which temperature will equilibrium exist when the atmospheric pressure is 1 atm?
(1) 0 K (3) 273 K
(2) 100 K (4) 373 K
The answer is (3) 273 K. The 1 atm means that the equation is under normally condition, which can have solid H2O and liquid H2O coexists under 0 ℃. And the 0 ℃ equals to 273 K.
