Mechanical Engineering - Thermodynamics - Discussion


The absolute zero pressure will be

[A]. when molecular momentum of the system becomes zero
[B]. at sea level
[C]. at the temperature of - 273 K
[D]. at the centre of the earth

Answer: Option A


No answer description available for this question.

Navdeep Agarwal said: (Aug 11, 2013)  
I think they are talking about system. If half of the molecules going towards one side and half towards other end, then also the total momentum will be zero. So either it should not talk about system or mention individual molecule.

S Bera said: (Jun 28, 2017)  
P =(2/3)E=(2/3)(1/2)(density) c2.

Vilas said: (Oct 5, 2018)  
At -273k there is no any molecular moments, means both option A & C are same.

Nitin said: (Dec 30, 2018)  

It is not at -273k, at -273°c and 0k.

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