Thank you for reporting, we will resolve it shortly
Q.
$ \Delta G=\Delta H-T\Delta S $ was given by :
AFMCAFMC 2004
Solution:
Gibbs Helmholtz equation
$\Delta G =\Delta H-T \Delta S $
$\Delta S =$ Gibb's free energy
$\Delta H =$ enthalpy change
$\Delta S =$ entropy change
This equation is very helpful in producting the spontaneity of a process.
$\rightarrow$ If $\Delta G$ is negative i.e., $\Delta G<0$, indicate that the process is spontaneous
$\rightarrow$ If $\Delta G=0$ i.e., $T \Delta S=0, \Delta S=0$, process is in equilibrium.
$\rightarrow \Delta G$ is positive i.e., $\Delta G > 0$, process is non spontaneous.
Faraday gave the law of electrolysis
$I$ law : $w=$ Zit
$w=$ substance deposited
$i=$ current (ampere)
$t=$ time $( sec )$
$Z=$ electrochemical equivalent
$II$ law : $\frac{w_{1}}{w_{2}}=\frac{Z_{1}}{Z_{2}}=\frac{E_{1}}{E_{2}}$
$w_{1}, w_{2}$ are the masses of substances liberated by passing the same quantity of electricity and $E_{1}$ and $E_{2}$ are their equivalent masses.
Einstein gave the energy relationship
$E=m c^{2}\left(c=3 \times 10^{8} m / s \right)$
$m=$ mass
$E=$ energy