“…The Flory's theory [25][26][27][28][29] and its extended forms [30][31][32][33] have been used extensively to predict excess properties of non-electrolyte systems for different kinds of mixtures, including polar components [3,5,7,19,[34][35][36][37][38][39][40][41][42][43][44][45]. The present work reports the applicability of the Prigogine-Flory-Patterson theory (PFP theory) to predict excess molar volume of binary mixtures of ethers with acetonitrile.…”