For \(\mathrm{H}_2 \mathrm{O}_{(\mathrm{l})} \rightarrow \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}, \Delta \mathrm{S}\) is +ve.
NCERT-XI-158
3 RBTS PAPER
162655
For the reaction \(\mathrm{H}_2 \mathrm{O}_{(\mathrm{l})} \rightleftharpoons \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}\) at \(373 \mathrm{~K}\) and 1 atm pressure :
\(\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}\) at eqn. \(\Delta \mathrm{G}=0\) So, \(\Delta \mathrm{H}=\mathrm{T} \Delta \mathrm{S}\)
NCERT-XI-161
3 RBTS PAPER
162657
The enthalpy of combustion of cyclohexane, cyclohexene and \(\mathrm{H}_2\) are respectively \(-3920,-3800\) and \(-241 \mathrm{~kJ} \mathrm{~mol}^{-1}\). The heat of hydrogenation of cyclohexene is:
For \(\mathrm{H}_2 \mathrm{O}_{(\mathrm{l})} \rightarrow \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}, \Delta \mathrm{S}\) is +ve.
NCERT-XI-158
3 RBTS PAPER
162655
For the reaction \(\mathrm{H}_2 \mathrm{O}_{(\mathrm{l})} \rightleftharpoons \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}\) at \(373 \mathrm{~K}\) and 1 atm pressure :
\(\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}\) at eqn. \(\Delta \mathrm{G}=0\) So, \(\Delta \mathrm{H}=\mathrm{T} \Delta \mathrm{S}\)
NCERT-XI-161
3 RBTS PAPER
162657
The enthalpy of combustion of cyclohexane, cyclohexene and \(\mathrm{H}_2\) are respectively \(-3920,-3800\) and \(-241 \mathrm{~kJ} \mathrm{~mol}^{-1}\). The heat of hydrogenation of cyclohexene is:
For \(\mathrm{H}_2 \mathrm{O}_{(\mathrm{l})} \rightarrow \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}, \Delta \mathrm{S}\) is +ve.
NCERT-XI-158
3 RBTS PAPER
162655
For the reaction \(\mathrm{H}_2 \mathrm{O}_{(\mathrm{l})} \rightleftharpoons \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}\) at \(373 \mathrm{~K}\) and 1 atm pressure :
\(\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}\) at eqn. \(\Delta \mathrm{G}=0\) So, \(\Delta \mathrm{H}=\mathrm{T} \Delta \mathrm{S}\)
NCERT-XI-161
3 RBTS PAPER
162657
The enthalpy of combustion of cyclohexane, cyclohexene and \(\mathrm{H}_2\) are respectively \(-3920,-3800\) and \(-241 \mathrm{~kJ} \mathrm{~mol}^{-1}\). The heat of hydrogenation of cyclohexene is:
For \(\mathrm{H}_2 \mathrm{O}_{(\mathrm{l})} \rightarrow \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}, \Delta \mathrm{S}\) is +ve.
NCERT-XI-158
3 RBTS PAPER
162655
For the reaction \(\mathrm{H}_2 \mathrm{O}_{(\mathrm{l})} \rightleftharpoons \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}\) at \(373 \mathrm{~K}\) and 1 atm pressure :
\(\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}\) at eqn. \(\Delta \mathrm{G}=0\) So, \(\Delta \mathrm{H}=\mathrm{T} \Delta \mathrm{S}\)
NCERT-XI-161
3 RBTS PAPER
162657
The enthalpy of combustion of cyclohexane, cyclohexene and \(\mathrm{H}_2\) are respectively \(-3920,-3800\) and \(-241 \mathrm{~kJ} \mathrm{~mol}^{-1}\). The heat of hydrogenation of cyclohexene is: