Kimyasal Tepkimelerde Hız -I

For the reaction

H₂O₂ (g) → H₂O + ½ O₂ ∆H : -26 kcal

The activation energy of the forward reaction (E_a(f)) is 86 kcal/mole. Calculate the activation energy of the reverse reaction (E_a(r)).

For the reaction given below, find

a) The enthalpy change of the reaction:

XY₃ → 1/2 X₂ + 3/2Y ₂

For the reaction given below, find

b) Activation energy of the reaction:

2XY₃ → X₂ + 3Y ₂

For the reaction given below, find

2XY₃ → X₂ + 3Y ₂

c) Find the heat change when 3 moles of XY₃ gas decomposes into X₂ and Y ₂ ?

C₂H₆ (g) + 7/2O₂ (g) → 2CO₂ (g) + 3H₂O (g)

According to the above reaction, at the same time when consuming rate of C₂H₆ is 15 g/min what is the formation rate of CO₂ in L/min at STP? (C=12, H=1)

• 30

• 15

• 44.8

• 22.4

• 11.2

I. 2NO (g) + O₂ (g) → 2NO₂ (g)

II. NH₃ (g) + HCI (g) → NH₄CI (k)

III. 2N₂O (g) → 2N₂ (g) + O₂ (g)

Rate of which of the above reactions with constant volume and temperature can be determined by measuring decrease of pressure in unit of time?

• Only I

• Only III

• I and II

• I and III

• I, II and III

2N₂O₅ (g) → 4NO₂ (g) + O₂ (g)

In above reaction, the initial N₂O₅ concentration at 60°C is 1 M. 2 minutes later, given that N₂O₅ concentration at the container is 0.6 M, what is the formation rate of NO₂ in mol/L.min?

• 0.1

• 0.2

• 0.4

• 0.8

• 1.6