Temperature of an object can be described as the property, which determines the sensation of hotness or coldness felt from contact with it. More unambiguously, using the Zeroth law of thermodynamics, temperature of a system is de ned as the property that determines whether or not that system is in thermal equilibrium with any other system with which it is put in thermal contact (Finn, 1993). When two or more systems are in thermal equilibrium, they are said to have the same temperature.
Temperature is most commonly measured in the Celsius (1C), Fahrenheit (1F) and Kelvin (K) scales. The rst two scales are based on the melting point of ice and the boiling point of water. In the Kelvin scale, the limiting low temperature, called the absolute zero, is taken as the zero of the scale, and the triple point of water—where the ice, water and water vapor phases can co-exist in equilibrium, is equal to273.16 K.
Temperature is most commonly measured in the Celsius (1C), Fahrenheit (1F) and Kelvin (K) scales. The rst two scales are based on the melting point of ice and the boiling point of water. In the Kelvin scale, the limiting low temperature, called the absolute zero, is taken as the zero of the scale, and the triple point of water—where the ice, water and water vapor phases can co-exist in equilibrium, is equal to273.16 K.
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