Thermodynamic and Statistical Physics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 25  28 of 64
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Question number: 25
» Thermodynamic and Statistical Physics » Phase Equilibria
Appeared in Year: 2011
Question
A particle is confined to the region by a potential which increases linearly as . The mean position of the particle at temperature T is – (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 26
» Thermodynamic and Statistical Physics » Random Walk
Appeared in Year: 2014
Question
A random walker takes a step of unit length in the positive direction with probability and a step of unit length in the negative direction with probability. The mean displacement of the walker after n steps is – (December)
Choices
Choice (4)  Response  

a.  0 

b. 


c. 


d. 


Question number: 27
» Thermodynamic and Statistical Physics » Phase Space
Appeared in Year: 2011
Question
Consider the transition of liquid water to steam as water boils at a temperature of 100^{0} C under a pressure of 1 atmosphere. Which one of the following quantities does not change discontinuously at the transition?  (June)
Choices
Choice (4)  Response  

a.  The internal energy 

b.  The entropy 

c.  The specific volume 

d.  The Gibbs free energy 

Question number: 28
» Thermodynamic and Statistical Physics » Maxwell Relations
Appeared in Year: 2011
Question
A system of N non – interacting spin particles is placed in external magnetic field H. The behaviour of the entropy of the system as a function of energy is given by – (December)
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
