6)

Assume that C_(6)H_(6) and C_(6)H_(5)CH_(3) form an ideal solution then DeltaG, DeltaH and Delta S "at" 25^(0)C for the addition of 1 mole of C_(6)H_(6) to an infinity large sample of solution with a mole fraction of 0.35 for C_(6)H_(6) is

4int(sqrt(a^6+x^8))/x dx is equal to (a) sqrt(a^6+x^8)+(a^3)/2ln|(sqrt(a^6+x^8)+a^3)/(sqrt(a^6+x^8)-a^3)|+c (b) a^6ln|(sqrt(a^6+x^8)-a^3)/(sqrt(a^6+x^8)+a^3)|+c (c) sqrt(a^6+x^8)+(a^3)/2ln|(sqrt(a^6+x^8)-a^3)/(sqrt(a^6+x^8)+a^3)|+c (d) a^6ln|(sqrt(a^6+x^8)+a^3)/(sqrt(a^6+x^8)-a^3)|+c