Physical Parameter-Temperature

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Physical parameter

Name of the Physical Quantity: Temperature

> Temperature is a measure of the hotness or coldness of an object.

> The SI unit of temperature is K (Kelvin).

> A flow of heat energy from high temperature object to lower 

     temperature object.

> The lowest theoretical temperature is absolute zero, at which no 

    more thermal energy can be extracted from a body. 

    The absolute zero, defined as 0 K, is approximately equal 

       to −273.15 °C, or −459.67 °F.

> In thermodynamic terms, temperature is an intensive variable.

> A negative temperature is one below the zero-point of the scale used.

          For example, dry ice has a sublimation temperature of −78.5 °C 

          which is equivalent to −109.3 °F.

> Temperature is measured with a thermometer.

> There are three common scale to measure temperature,

          1. Kelvin (K) 2. Degree Celsius (⁰C) 3. Degree Fahrenheit (⁰F)

> Relation between two scales:

                ⁰F = 9/5 (⁰C) + 32  and   K = ⁰C + 273.15

Irfan Bashumiya Pathan

Shamsul Uloom Urdu High school & Higher Secondary School, Osmanabad. (MH)

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