Physical Chemistry Summary Ideal gases/Perfect gases Key Notes e Gases: a fluid which has no intrinsic shape and which e expands indefinitely to fill any container in which it is held The ideal gas equations: the relations among the amount of gas substance, temperature, pressure and volume PV=nRT PYm=RT Vm: molar gas volume3 Key Notes Ideal Gases/Perfect Gases Physical Chemistry Summary Gases: a fluid which has no intrinsic shape, and which expands indefinitely to fill any container in which it is held. The ideal gas equations: the relations among the amount of gas substance, temperature, pressure and volume. PV = nRT PVm = RT Vm: molar gas volume