(1)分子的动能和势能 Kinetic and potential energies of the molecules 热力学能=内动能+内位能 T T u is a function of the state of the system u =u(p, T),or u =u(p, v, or u= u(v,T)（1）分子的动能和势能 Kinetic and potential energies of the molecules u is a function of the state of the system. u = u (p, T), or u = u (p, v), or u = u(v,T). 热力学能＝内动能＋内位能 T T, v