$2 \, mol$ of zinc is dissolved in $HCl$ at $25 \, ^\circ C$. The work done in an open vessel is: (in $, kJ$)

Let us consider an endothermic reaction which is non-spontaneous at the freezing point of water. However,the reaction is spontaneous at the boiling point of water. Choose the correct option.

For a reaction to occur spontaneously,which of the following conditions must be met?

In which of the following conditions will a reaction always be spontaneous at all temperatures?

At the transition temperature $T$,$\Delta G^0 = 0$ and $\Delta G^0 = 105 - 35 \log T$,where $A$ and $B$ are two states of substance $X$. The transition temperature in $^\circ\text{C}$ when pressure is $1 \text{ atm}$ is . . . . . . .

What is the relationship between Gibbs free energy change,enthalpy change,and entropy change?