Jee Main
Thermodynamics
JEE Main 2021 (Online) 26th August Morning Shift
INTEGER+4 / -12021
The Born-Haber cycle for KCl is evaluated with the following data :
\({\Delta _f}{H^\Theta }\) for KCl = \(-\)436.7 kJ mol\(-\)1 ;
\({\Delta _{sub}}{H^\Theta }\) for K = 89.2 kJ mol\(-\)1 ;
\({\Delta _{ionization}}{H^\Theta }\) for K = 419.0 kJ mol\(-\)1 ;
\({\Delta _{electron\,gain}}{H^\Theta }\) for Cl(g) = \(-\)348.6 kJ mol\(-\)1 ;
\({\Delta _{bond}}{H^\Theta }\) for Cl2 = 243.0 kJ mol\(-\)1
The magnitude of lattice enthalpy of KCl in kJ mol\(-\)1 is _____________ (Nearest integer)
\({\Delta _f}{H^\Theta }\) for KCl = \(-\)436.7 kJ mol\(-\)1 ;
\({\Delta _{sub}}{H^\Theta }\) for K = 89.2 kJ mol\(-\)1 ;
\({\Delta _{ionization}}{H^\Theta }\) for K = 419.0 kJ mol\(-\)1 ;
\({\Delta _{electron\,gain}}{H^\Theta }\) for Cl(g) = \(-\)348.6 kJ mol\(-\)1 ;
\({\Delta _{bond}}{H^\Theta }\) for Cl2 = 243.0 kJ mol\(-\)1
The magnitude of lattice enthalpy of KCl in kJ mol\(-\)1 is _____________ (Nearest integer)