\(\Delta S_{\text {reaction }}=-50-\left(\frac{3}{2} \times 40+\frac{1}{2} \times 60\right)\)\(=-40 \mathrm{Jmol}^{-1}\)
\(\Delta \mathrm{C}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}\)
at equilibrium \(\Delta G=0\) \(\Delta H=T \Delta S\)
\(30 \times 10^{3}=T \times 40\)
\(\Rightarrow T=750 \mathrm{K}\)
$A.$ $I _2( g ) \rightarrow 2 I ( g )$
$B.$ $HCl ( g ) \rightarrow H ( g )+ Cl ( g )$
$C.$ $H _2 O ( l ) \rightarrow H _2 O ( g )$
$D.$ $C ( s )+ O _2( g ) \rightarrow CO _2( g )$
$E.$ પાણીમાં એમોનિયમ કલોરાઈડનું વિલયન (ઓગળવું)
$H_2$$_{(g)} +$ $1/2O_2$ $_{(g)}$ $\rightarrow$ $H_2$$O$$_{(l)}$; $\Delta H= -$ $285.77\, KJ\, mol$$^{-1}$; $H_2$$_{(g)} +$ $1/2O_2$$_{(g)}$ $\rightarrow$ $H_2O$ $_{(g)}$; $\Delta H$ $ = - 241.84\, KJ \,mol$$^{-1}$