Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion
Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 1 (Q.No. 32)
32.
The heat transfer takes place according to
Discussion:
12 comments Page 1 of 2.
Biren said:
8 years ago
Heat transfer takes place according to higher to lower so its second is 100% right here.
(1)
Avijit said:
1 decade ago
I think first law of thermodynamics,
Q = U+W but for heat transfer W=0.
Q = U+W but for heat transfer W=0.
Gajadhar rajak said:
1 decade ago
The answer will be (A) zeroth law of thermodynamics.
Ranveer singh said:
1 decade ago
Answer is C because according to 2nd law it is impossible to transfer heat from low temp reservoir to high i.e. heat transfer is from high to low.
Sangram said:
1 decade ago
Because zeroth is for thermal equilibrium.
Sangram said:
1 decade ago
Answer C is right.
Lal said:
10 years ago
0th law tells about thermal equilibrium.
1st law conservation of all energy not heat transfer.
2nd law makes possible heat flow by giving direction.
1st law conservation of all energy not heat transfer.
2nd law makes possible heat flow by giving direction.
Pranay said:
9 years ago
Second law talks about the direction constraints in energy transaction or in any natural and synthetic processes.
Eg: grey hair can not turn black, but the reverse is true.
- source nptel
kelvin plank and Clausius statements tell us same.
Eg: grey hair can not turn black, but the reverse is true.
- source nptel
kelvin plank and Clausius statements tell us same.
Prashant said:
9 years ago
Heat transfer takes place from higher to lower temperature according to the second law of thermodynamics.
Dhruvi said:
9 years ago
Yes, right @Prashant.
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