Thermodynamic and Statistical Physics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 41  44 of 64
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 463 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 300.00 or
Question number: 41
» Thermodynamic and Statistical Physics » BoseEinstein Condensation
Appeared in Year: 2012
Question
Bose condensation occurs in liquid kept at ambient pressure at . At which temperature will Bose condensation occur in in gaseous state, the density of which is 1000 times smaller than that of liquid ?
(Assume that it is a perfect Bose gas) (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 42
» Thermodynamic and Statistical Physics » BoseEinstein Condensation
Appeared in Year: 2012
Question
Non – interacting boson undergo Bose – Einstein Condensation (BEC) when trapped in a three – dimensional isotropic simple harmonic potential. For BEC to occur, the chemical potential must be equal to –
(December)
Choices
Choice (4)  Response  

a. 


b. 


c.  0 

d. 


Question number: 43
» Thermodynamic and Statistical Physics » Laws of Thermodynamics
Appeared in Year: 2012
Question
A given quantity of gas is taken from the state reversibly, by two paths, directly and as shown in the figure below.
During the process the work done by the gas is 100 J and the heat absorbed is . If during the process the work done by the gas is , the heat absorbed is – (December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 44
» Thermodynamic and Statistical Physics » Free Energy
Appeared in Year: 2012
Question
The free energy difference between the superconducting and the normal states of a material is given by, where is an order parameter and and are constants such that in the normal and in the superconducting state, while always. The minimum value of is – (December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

