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Vsevolod [243]
2 years ago
8

When the chemical reaction 2no(g)+o2(g)→2no2(g) is carried out under certain conditions, the rate of disappearance of no(g) is 5

. 0×10−5 ms−1. What is the rate of disappearance of o2(g) under the same conditions?.
SAT
1 answer:
viktelen [127]2 years ago
4 0

The rate of disappearance of O2(g) under the same conditions is 2.5 × 10⁻⁵ m s⁻¹.

<h3>What is the rate law of a chemical equation? </h3>

The rate law of a chemical reaction equation is usually dependent on the concentration of the reactant species in the equation.

The chemical reaction given is;

\mathbf{2 NO_{(g)} + O_{2(g)} \to 2 NO_{2(g)} }

The rate law for this reaction can be expressed as:

\mathbf{= -\dfrac{1}{2}\dfrac{d[NO]}{dt} = -\dfrac{1}{1}\dfrac{d[O_2]}{dt}= +\dfrac{1}{2}\dfrac{d[NO_2]}{dt}}

Recall that:

  • The rate of disappearance of NO(g) = 5.0× 10⁻⁵ m s⁻¹.

  • Since both NO and O2 are the reacting species;

Then:

  • The rate of  disappearance of NO(g) is equal to the rate of  disappearance of O2(g)

\mathbf{= -\dfrac{1}{2}\dfrac{d[NO]}{dt} = -\dfrac{1}{1}\dfrac{d[O_2]}{dt}}

\mathbf{= -\dfrac{1}{2} \times 5.0 \times 10^{-5}  = rate \  of  \ disappearance \ of  \ O_2}

Thus;

The rate of disappearance of O2 = 2.5 × 10⁻⁵ m s⁻¹.

Therefore, we can conclude that two molecules of NO are consumed per one molecule of O2.

Learn more about the rate law here:

brainly.com/question/14945022

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