Which statement correctly defines the temperature of a body?
Degree of hotness or coldness of a body
Heat and temperature are two distinct ideas: heat is the energy that flows between bodies, while temperature is the property that tells us how hot or cold a body is.
Temperature is therefore defined as the degree of hotness or coldness of a body, measured on a scale such as Celsius or Kelvin.
It is temperature difference that decides the direction of heat flow, since heat always passes from the body at higher temperature to the one at lower temperature.
So the statement that captures this meaning is the degree of hotness or coldness of a body.
Amount of heat in a body describes stored thermal energy, which depends on mass and specific heat as well as temperature, so it is not the definition of temperature.
Quantity of temperature is meaningless as a definition, and ability to conduct heat describes thermal conductivity, a different property, so both are incorrect.
Hence, the answer is Degree of hotness or coldness of a body.
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