_______ of a substance is the temperature and pressure at which three phases (gas, liquid, and solid) of that substance may coexist in thermodynamic equilibrium.
Triple-point
On a phase diagram, the triple point is the unique combination of temperature and pressure at which solid, liquid and gas phases of a substance coexist in equilibrium.
For water, the triple point is 273.16 K (0.01 °C) at a pressure of about 611.66 Pa.
Allotropy refers to different structural forms of one element (such as diamond and graphite), and the other two terms do not describe this state.
Hence, Triple-point.
Important Questions from States of Matter
Which is correct statement ?
According to Charle's Law, which of the following is constant?
Which of the following statements is/are correct?
I. Mass vapor is obtained in the air by evaporation and transpiration.
II. Water circulation between the oceans and the water bodies is called the water cycle.
Which of the following statements is not correct regarding matter?
'Laughing Gas' is:
