Question

predict the sign of entropy and enthalpy change in the equation H2O(g)->H2O(l)​

Answer 1

Answer:

As the reaction is spontaneous because the compound is converting into its pure state.

so according to criteria of spontaneity

∆S= positive

∆H= negative

hope it helps you....

Answer 2

Answer:

entropy is defined as the randomness of molecules present in the system. water molecules from the gaseous phase changes to liquid phase. so randomness decreases so, entropy decreases.

Similarly enthalpy also decreases because enthalpy is directly proportional to entropy