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 1 of 3.
Sharukh khan said:
1 decade ago
s=q/t. Since t=0,
But we know that in this situation q is also equals to zero(0) So s=0.
But we know that in this situation q is also equals to zero(0) So s=0.
Sharad s ingle said:
1 decade ago
It's wrong answer a/c to 3rd low of thermodynamics s=0 at t=0k.
Gaurav said:
1 decade ago
Yeah it should be 0 Kelvin instead of 0 degree centigrade.
Shivam gohite said:
1 decade ago
At 0k, value of entropy is zero. At 0 degC entropy depends on the direction of heat transfer.
Rao said:
10 years ago
We know that dQ=tds since t=0. So entropy also zero.
Jayesh said:
10 years ago
Yes I agree with you that entropy should zero at 0k temp.
Vishal said:
9 years ago
Entropy of system is sum of entropy generation & dQ/t.
Atul said:
9 years ago
It is zero at 0k but will have some value at 0 degree c.
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.
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.
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