Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 2 (Q.No. 13)
13.
The entropy of water at 0°C is assumed to be
Discussion:
27 comments Page 3 of 3.
Virendra said:
8 years ago
It should be 0 K, and not 0°.
Shahid said:
7 years ago
Entropy should be zero at 0° K, but in case of water 0 entropy is assumed at 0° celcius.
Sohan said:
7 years ago
For 0K, entropy is zero for perfectly crystalline substance, but 0 K is unachieveable and absolute entropy is not measurable, hence we take triple point of water arbitrarily as 0 entropy.
(1)
Manoj sutahr said:
7 years ago
Yes, it should be absolute Zero temp that is 0K.
(1)
Aditya loachab said:
7 years ago
According to the third law of thermodynamics, entropy remains until temperature 0K because some molecular momentum is there till 0Kelvin.
Vilas s h said:
7 years ago
At 0°c water will freeze but a moment of particles are there when particles are moving how the entropy is zero. At 0k there is no particles movement, means no moment zero entropy.
Sivaramakrishnaiah said:
6 years ago
Entropy zero only at absolute temperature 0K.
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