Question

What is triple point of water? Why is it called the triple point? Chemistry

Answer 1

In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium. ... The value of the triple point of water is fixed by definition, rather than measured.

Answer 2

Hey !

The triple point of any substance is that temperature and pressure at which the material can coexist in all three phases (solid , liquid and gas) in equilibrium. Specifically, the triple point of water is 273.16 K at 611.2 Pa.