1. Gaseous ammonia is burned with O2 in a container of fixed volume according to the following equation: 4NH3(g) + 3O2(g
Posted: Sat Feb 26, 2022 11:57 am
1. Gaseous ammonia is burned with O2 in a container of fixed
volume according to the following equation:
4NH3(g) + 3O2(g) 2N2(g) + 6H2O(l)
Calculate the enthalpy change per mole of O2. Show working. (2
marks)
ΔfH°(NH3(g)) = −46.11 kJ mol−1; ΔfH°(H2O(l)) = −285.83 kJ
mol−1
2. The rate constant for a reaction is 5.0 × 10–3 s–1 at
215 oC and 1.2 × 10–1 s–1 at
452 oC.
What is the activation energy of the reaction in kJ mol–1. (2
marks)
3. What is the rate constant for this reaction at 100 oC?
(2 marks)
volume according to the following equation:
4NH3(g) + 3O2(g) 2N2(g) + 6H2O(l)
Calculate the enthalpy change per mole of O2. Show working. (2
marks)
ΔfH°(NH3(g)) = −46.11 kJ mol−1; ΔfH°(H2O(l)) = −285.83 kJ
mol−1
2. The rate constant for a reaction is 5.0 × 10–3 s–1 at
215 oC and 1.2 × 10–1 s–1 at
452 oC.
What is the activation energy of the reaction in kJ mol–1. (2
marks)
3. What is the rate constant for this reaction at 100 oC?
(2 marks)