question_answer

Consider two insulated chambers (A, B) of same volume connected by a closed knob, S. 1 mole of perfect gas is confined in chamber What is the change in entropy of gas when knob S is opened? R = 8.31 J mo1 -1K-1

A)  1.46 J/K        

B)  3.46 J/K

C)  5.46 J/K        

D)  7.46 J/K