<P> 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 . For example , the triple point of mercury occurs at a temperature of − 38.83440 ° C and a pressure of 0.2 m Pa . </P>
<P> 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 . For example , the triple point of mercury occurs at a temperature of − 38.83440 ° C and a pressure of 0.2 m Pa . </P>
the temperature and pressure at which a liquid and a gas are in equilibrium
the temperature and pressure at which a liquid and a gas are in equilibrium
triple point
triple point