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Chemical Kinetics

Question
CBSEENCH12010868
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The following mechanism has been proposed for the reaction of NO with Br2 to form NOBr
NO(g) Br2 (g) ⇌ NOBr2 (g)
NOBr2 (g) NO(g)→ 2NOBr(g)
If the second step is the rate determining step, the order of the reaction with respect to NO(g) is

  • 1

  • 0

  • 3

  • 2

Solution

D.

2

NO(g) Br2 (g) ⇌ NOBr2 (g)
NOBr2 (g) NO(g)→ 2NOBr(g)
R = K[NOBr2][NO]
= K.Kc[NO][Br2][NO], = fraction numerator left square bracket NOBr subscript 2 right square bracket over denominator left square bracket NO right square bracket left square bracket Br subscript 2 right square bracket end fraction
=K' [NO]2 [Br2 ]

Some More Questions From Chemical Kinetics Chapter

A reaction is 50% complete in 2 hours and 75% complete in 4 hours. What is the order of the reaction.

The rate law for the decomposition of N2O5 is rate = k[N2O5]. What is the significance of k in this equation?

Define activation energy of a reaction.

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