Answer:
A) б = - R ( nA In Ya - nB In Yb )
B) s2 = ( nA + nB ) s( T,P )
C) No entropy will be produced
Explanation:
A) assuming ideal gas behavior the expression for entropy produced
for a closed system : s2 - s1 = б
where : s1 ( initial entropy ) = nA sA ( T, P ) + nB sB ( T, P )
s2 ( final entropy ) = nA sA ( T, YaP ) + nB sB ( T, YbP )
∴ б = - R ( nA In Ya - nB In Yb )
B) Given that
Ya and Yb are less than 1 respectively, hence the value of б = positive
also assuming the gases are identical
s2 = ( nA + nB ) s( T,P )
C) No entropy will be produced when same gas at same temperature and same pressure are mixed
