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.
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.
Kishan said:
8 years ago
According to 3rd law of thermodynamics entropy is =0 at 0 kelvin, not at 0-degree celcius.
Mr. Singh said:
8 years ago
Entropy is zero at absolute zero temperature. Absolute zero temperature = 0K.
Shubham said:
9 years ago
It's wrong que actually entropy is zero at absolute zero temperature (0 k).
Ananda said:
8 years ago
S=mcln(t2/t1).
Here t1=t2=273 kelvin,
So ln(273/273)=ln(1)= 0,
Hence S=0.
Here t1=t2=273 kelvin,
So ln(273/273)=ln(1)= 0,
Hence S=0.
Thomas said:
9 years ago
Entropy is always greater than zero for all temp greater than 0K.
Sharad s ingle said:
1 decade ago
It's wrong answer a/c to 3rd low of thermodynamics s=0 at t=0k.
Vishal said:
1 decade ago
Entropy of system is sum of entropy generation & dQ/t.
Gaurav said:
1 decade ago
Yeah it should be 0 Kelvin instead of 0 degree centigrade.
Jayesh said:
1 decade ago
Yes I agree with you that entropy should zero at 0k temp.
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