Answer:
17.93 kJ
Explanation:
The relation between standard Gibbs energy and equilibrium reaction is shown below as:
[tex]\Delta{G^0} =-RT \ln K[/tex]
R is Gas constant having value = 0.008314 kJ / K mol
Given For the reaction:-
[tex]HF+H_2O\rightarrow H_3O^++F^-[/tex]
temperature, T = [tex]25^oC=[25+273]K=298K[/tex]
[tex]K=7.2\times 10^{-4}[/tex]
Applying in the above equation as:-
[tex]\Delta{G^0} =-0.008314\times 298 \ln(7.2\times 10^{-4})\ kJ=17.93\ kJ[/tex]
