The decomposition of NH3 on platinum surface is zero order reaction. I

1.	The decomposition of NH3 on platinum surface is zero order reaction. If rate constant (k) is 4 x 10-3 Ms−3, how long will it take to reduce the initial concentration of NH3 from 0.1 M to 0.064 M.
Answer» Given that the decomposition of NH₃ is a zero-order reaction. Integrated form of the zero-order rate law is t = [A]₀ − [A] / k ......(1) Substituting [A]₀ = 0.1 M, [A] = 0.064 M and k = 4 x 10⁻³ Ms⁻¹ in Eq. (1), we get t = 0.1 − 0.064 / 4x 10^-3 = 9s

The decomposition of NH3 on platinum surface is zero order reaction. If rate constant (k) is 4 x 10-3 Ms−3, how long will it take to reduce the initial concentration of NH3 from 0.1 M to 0.064 M.

Answer»

Given that the decomposition of NH₃ is a zero-order reaction. Integrated form of the zero-order rate law is

t = [A]₀ − [A] / k ......(1)

Substituting [A]₀ = 0.1 M, [A] = 0.064 M and k = 4 x 10⁻³ Ms⁻¹ in Eq. (1), we get

t = 0.1 − 0.064 / 4x 10^-3

= 9s

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The decomposition of NH3 on platinum surface is zero order reaction. If rate constant (k) is 4 x 10-3 Ms−3, how long will it take to reduce the initial concentration of NH3 from 0.1 M to 0.064 M.

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