Question
Physical Chemistry Question on Thermodynamic functions and their relationships
The correct statement(s) related to an ensemble is (are) :
an ensemble is a collection of an infinite number of imaginary replications of the system of interest.
all members of an ensemble are macroscopically identical and also have identical microstates.
an ensemble average of any macroscopic property of the system is equal to the value of the property averaged over a sufficiently long time.
all systems in a canonical ensemble need NOT have the same composition.
an ensemble is a collection of an infinite number of imaginary replications of the system of interest.
Solution
The correct option is (A) : an ensemble is a collection of an infinite number of imaginary replications of the system of interest and (C) : an ensemble average of any macroscopic property of the system is equal to the value of the property averaged over a sufficiently long time.