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प्रश्न
State Third law of thermodynamics. Give ‘two’ uses.
टिप्पणी लिखिए
उत्तर
The third law of thermodynamics states that, “The entropy of a perfectly ordered crystalline substance is zero at absolute zero of temperature”.
Usefulness :
(a) It helps in calculating thermodynamic properties.
(b) It is helpful in measuring chemical affinity.
(c) It is used to determine the absolute entropy of any substance either in solid, liquid or gaseous state at
any desired temperature.
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