Q. What is temperature?
Ans. Temperature a physical quantity is the degree of heat present in an object expressing hotness and coldness. Temperature is generally expressed with a thermometer according to a comparative scale or perceived by touch. Temperature is calibrated in various temperature scales and units of measurement.
Following are the most commonly used scales.
Q. What is the SI unit of Temperature ?
Ans. The kelvin (K) is the unit of temperature in the International System of Units (SI).
Q. What is absolute zero Temperature ?Absolute Zero is the coldest theoretical temperature, at which fundamental particles in matter loose most of their heat and their thermal motion reaches a minimum, no more heat can be removed from the matter after this point. Absolute zero is denoted as 0 K on the Kelvin scale, −273.14 °C on the Celsius scale, and −459.67 °F on the Fahrenheit scale.