Physical Chemistry A Student's Question Question and Answering 5m2 Raoult's law: P=PA+PB=PAxA+PBxB Dalton,'s Law: PA=PxA Case(3) PD= P B B x;=x+x Case(1) Case(2) P B A B x B3 Question and Answering Physical Chemistry A Student’s Question Raoult’s Law: v i l i x = x + x i l B o B l A o A A P = P + P = P x + P x B v PB = PxB v PA = PxA Answers. Dalton’s Law: A B B → x o PB o PA Case (1) Case (2) Case (3)