IB Multiple Choice - Enthalpy

Test yourself on IB Multiple Choice - Enthalpy

• What is the enthalpy of formation for the hydrogen bromide?

• Determine the enthalpy change per mole of zinc reacting for the reaction:

  Zn_(s) + 2HCl_(aq) ⟶ ZnCl_2(aq) + H_2(g)

• Use these equations to determine the enthalpy of formation (Δ𝐻∘_f) of FeCl_3(s).

• Use the below equations to the reactions here to determine the ΔH° for the reaction on the previous slide:
  
  

  2OF_2(g) ⟶ O_2(g) + 2F_2(g) Δ𝐻∘ = −49.4kJ
  2ClF_(g) + O_2(g) ⟶ Cl₂O_(g) + OF_2(g )Δ𝐻∘ = +214.0 kJ
  ClF_3(g) + O_2(g) ⟶ $\large\frac {1}{2}$Cl₂O_(g) + $\large\frac {3}{2}$OF_2(g) Δ𝐻∘ = +236.2 kJ