Gce Model Questions Vol1 2023 Chemistry Question 17
Practice objective / multiple choice question 17 from the 2023 Gce Model Questions Vol1 Chemistry examination.
The standard enthalpy of formation of hydrogen fluoride gas is \(\Delta_f H^\circ(\text{HF}) = -270\ \text{kJ mol}^{-1}\). The bond dissociation energy of the H-H bond is \(D(\text{H-H}) = 436\ \text{kJ mol}^{-1}\) and that of the H-F bond is \(D(\text{H-F}) = 565\ \text{kJ mol}^{-1}\). Using Hess's law, calculate the bond dissociation energy of the F-F bond, \(D(\text{F-F})\), in \(\text{kJ mol}^{-1}\).
Answer Options
About This Question
This is Gce Model Questions Vol1 2023 Chemistry Question 17. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.