Temperature of a body is the degree of hotness or coldness of the body. A device which is used to measure the temperature, is called a thermometer. Highest possible temperature achieved in laboratory is about 108 while lowest possible

temperature attained is 10-8 K.

Branch of Physics dealing with production and measurement temperature close to 0 K is known as cryagenics, while that deaf with the measurement of very high temperature is called pyromet Temperature of the core of the sun is 107 K while that of its surface 6000 K.

NTP or STP implies 273.15 K (0°C = 32°F).