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    Amrita Raju Gulati
    Amrita Raju Gulati
    Asked: 3 years agoIn:

    Answer the following :
    (a) The triple-point of water is a standard fixed point in modern thermometry. Why ? What is wrong in taking the melting point of ice and the boiling point of water as standard fixed points (as was originally done in the Celsius scale) ?
    (b) There were two fixed points in the original Celsius scale as mentioned above which were assigned the number `0^(@)C” and “100^(@)C` respectively. On the absolute scale, one of the fixed points is the triple-point of water, which on the Kelvin absolute scale is assigned the number 273.16 K. What is the other fixed point on this (Kelvin) scale ?
    (c ) The absolute temperature (Kelvin scale) T is related to the temperature `t_(c)` on the Celsius scale by
    `t_(c)=T-273.15`
    Why do we have 273.15 in this relation, and not 273.16 ?
    (d) What is the temperature of the triple-point of water on an absolute scale whose unit interval size is equal to that of the Fahrenheit scale ?

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