找考题网-背景图
单项选择题

A.H2O(l,373K,p)→H2O(g,373K,p);B.N2(g,400K,1000kPa)→N2(g……

△G=△A的过程是:()

A.H2O(l,373K,p)→H2O(g,373K,p);
B.N2(g,400K,1000kPa)→N2(g,400K,100kPa);
C.等温等压下,N2(g)+3H2(g)→NH3(g);
D.Ar(g,T,p)→Ar(g,T+100,p)。