When two moles of liquid a are mixed with wo moles of liquid b at 300 k, the excess molar gibbs energy of the solution is -1.5 kj mol, the corresponding value o

When two moles of liquid A are mixed with wo moles of liquid B at 300 K, the excess molar Gibbs energy of the solution is -1.5 kj mol, The corresponding value of Gibbs energy of mixing (in kJ) is closest to (R 8.3J Kmol) 1.-12.9 2.-6.0 3.-1.5 4.-0.9