Physical Chemistry Summary Ideal gases/Perfect gases Key Notes e Partial pressure: the pressure exerted by each component In a gaseous mixture P=nrt/v n. mole irp total x;: mole fraction e Dalton's law: the total pressure exerted by a mixture of ideal gases in a volume is equal to the arithmetric sum of the partial pressures total niota rT/y4 Key Notes Ideal Gases/Perfect Gases Physical Chemistry Summary Dalton’s law: the total pressure exerted by a mixture of ideal gases in a volume is equal to the arithmetric sum of the partial pressures. Ptotal = ntotalRT/V Partial pressure: the pressure exerted by each component in a gaseous mixture. Px = nxRT/V Pi = xiPtotal nx : mole xi : mole fraction