Question

Benzene and naphthalene form an ideal solution at room temperature. For this process,the true statement(s) is (are)
A. `DeltaH` is positive
B. `DeltaS_("system")` is positive
C. `DeltaS("surroundings")=0`
D. `DeltaH=0`

Answer 1

Correct Answer - B,C,D
(B,C,D) when a non ionic solid (naphtalene) dissovles in a non polar solvent(benzene) `DeltaG` is -ve(as the process is spontanueous)
`DeltaG`(system) is +ve (increase in entropy)
S(surrounding)=0 and `DeltH`=0 (because benzene and napthalene form an ideal solution.)