这个方程把吉布斯自由能中的温度变化，和焓的变化联系起来。
And it relates the temperature change in the Gibbs free energy with the enthalpy change.
我们同样可以看到如果保持自由焓,和压强不变熵的变化dS也是大于零的。
H We also saw that dS for constant H and p was greater than zero.
相发生变化时，焓也发生变化。
A change in enthalpy also takes place when a change of phase occurs.
相发生变化时，焓也发生变化。
A change in enthalpy also takes place when a change of phase occurs.
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