Does not have a vapor pressure The critical pressure of a substance is defined as the lowest pressure above which a substance cannot be liquefied at any temperature A substance cannot form a liquid above its critical temperature, regardless of the applied pressure
emymonts (@emymonts) - Urlebird
Above the critical temperature, the molecules have enough kinetic energy to overcome the intermolecular attractive forces.
Explanation the correct answer to this question is option c
The phrase 'critical temperature' refers to a temperature beyond which a gas cannot be liquefied, no matter how much pressure is applied. At pressures below the triple point, a substance cannot exist in the liquid state, regardless of its temperature Above critical temperature, a substance cannot exist in liquid state Above critical temperature, the average kinetic energy of gas molecules is always greater than the maximum kinetic energy of a molecule possible in liquid state.
What is the critical pressure A) the lowest pressure under which a substance can exist as a liquid at the critical temp b) the highest pressure under which a solid can exist c) the the pressure at which all substances are solids d) the pressure at which the attractive forces in matter break down The critical temperature of a substance is the temperature at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied. Above the critical temperature, a substance select one
