<P> The coldest theoretical temperature is absolute zero , at which the thermal motion of all fundamental particles in matter reaches a minimum . Although classically described as motionless , particles still possess a finite zero - point energy in the quantum mechanical description . Absolute zero is denoted as 0 K on the Kelvin scale , − 273.15 ° C on the Celsius scale , and − 459.67 ° F on the Fahrenheit scale . </P>
<P> The coldest theoretical temperature is absolute zero , at which the thermal motion of all fundamental particles in matter reaches a minimum . Although classically described as motionless , particles still possess a finite zero - point energy in the quantum mechanical description . Absolute zero is denoted as 0 K on the Kelvin scale , − 273.15 ° C on the Celsius scale , and − 459.67 ° F on the Fahrenheit scale . </P>
the temperature at which molecular energy is at a minimum
the temperature at which molecular energy is at a minimum
0 K on the Kelvin scale , − 273.15 ° C on the Celsius scale , and − 459.67 ° F on the Fahrenheit scale
0 K on the Kelvin scale , − 273.15 ° C on the Celsius scale , and − 459.67 ° F on the Fahrenheit scale