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Kimyasal Tepkimelerde Hız -I

Total questions: 7

Worksheet time: 14mins

Name
Class
Date
1.

For the reaction

H2O2 (g) → H2O + ½ O2 ∆H : -26 kcal

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

(a)  

2.

For the reaction given below, find

a) The enthalpy change of the reaction:

XY3 → 1/2 X2 + 3/2Y 2



(a)  

3.

For the reaction given below, find

b) Activation energy of the reaction:

2XY3 X2 + 3Y 2



(a)  

4.

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 ?



(a)  

5.

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)

a)

30

b)

15

c)

44.8

d)

22.4

e)

11.2

6.

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?

a)

Only I

b)

Only III

c)

I and II

d)

I and III

e)

I, II and III

7.

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?

a)

0.1

b)

0.2

c)

0.4

d)

0.8

e)

1.6