Multiple choice

The temperature at and above which vapour of a substance cannot be liquified is called _____.

  1. critical temperature

  2. saturated temperature

  3. zero temperature

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Critical temperature is the temperature above which a gas cannot be liquefied by applying pressure, no matter how high the pressure. Above this temperature, the substance exists only as a gas or supercritical fluid. This is a fundamental property of each substance.

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