2.对应系数关系式 (5.vt- TdS-Pdv as =T Hs.P:r.s-(a0 H =TdS+VdP aH =7 =V as 6 2. 对应系数关系式 U（S，V）：dU= dS S U V ( )   + dV V U S ( )   = TdS - PdV T S U V =   ( ) P V U S = −   ( ) H（S，P）：dH= dS S H P ( )   + dP P H S ( )   =TdS+VdP T S H P =   ( ) V P H S =   ( )