What is the theoretical temperature known as absolute zero, the coldest temperature possible?

Explanation

Absolute zero, defined as -273.15 degrees Celsius or 0 Kelvin, is the theoretical lowest possible temperature, at which the particles of a substance would have minimal thermal motion. It represents a limit that has never been fully achieved in practice, though scientists have reached temperatures extremely close to it in specialized laboratory experiments. The Kelvin temperature scale is defined so that 0 Kelvin corresponds exactly to this theoretical point. Explore more Everyday Science MCQs on mcqstutor to keep practicing.