Calculate δg° for the following reaction from the equilibrium constant at the temperature given. hf(aq)+h2o(l)⟶h3o+(aq)+f−(aq),t=25° c, k=7.2×10−4

17.93 kJ

Explanation:

The relation between standard Gibbs energy and equilibrium reaction is shown below as:

R is Gas constant having value = 0.008314 kJ / K mol  

Given For the reaction:-

temperature, T =

Applying in the above equation as:-

c is the answer because when something is left after something evaporates that shows the chemical change.