Question

2.
The rate of the reaction 2NO+ 0, 2NO,, at 25°C is 0.028 mol L-' S. The experimental rate is
given by r = k[NO] [0,. If the initial concentrations of the reactants are 0 = 0,040 mol Land
NO = 0.01 mol L-1, the rate constant of the reaction is
a) 7.0X10-L mol's
b) 7.0X10 L mol's
c) 7.0x10'Lmol's
d) 70x10' L mol's​

Answer 1

Explanation:

r=k[NO]

2

[O

2

]

Now, using given quantities:

0.028=k.(0.04)(0.01)

k=7×10

−3

L

2

mol

−2

s

−1