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 2 of 3.
Mr. Singh said:
8 years ago
Entropy is zero at absolute zero temperature. Absolute zero temperature = 0K.
Sweta said:
8 years ago
Obviously, it is 0K as at this temperature the molecular momentum is zero. Even during calculation, we don't use celsius.
Some of you said q=0.
How is q=0 as we have still latent heat of vapourisation?
Some of you said q=0.
How is q=0 as we have still latent heat of vapourisation?
Kishan said:
8 years ago
According to 3rd law of thermodynamics entropy is =0 at 0 kelvin, not at 0-degree celcius.
Santosh kumar said:
8 years ago
Yeah, it's wrong answer S = 0 at -273.15 degree C.
Shubham said:
8 years ago
It's wrong que actually entropy is zero at absolute zero temperature (0 k).
Thomas said:
8 years ago
Entropy is always greater than zero for all temp greater than 0K.
Shekhar said:
8 years ago
I think it should be 0 kelvin.
Bishwadeep Pal said:
8 years ago
Entropy means randomness. At 0 degree C water freezes and thus molecules don't moive. Hence entropy will be equal to 0.
Marwa said:
9 years ago
What is the final answer I agree with the latest answer 0 degree C mean 273 k. So it has answer value.
Atul said:
9 years ago
It is zero at 0k but will have some value at 0 degree c.
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