The equilibrium NH3(aq) + H20(1) →NH4*(aq) + OH¯(aq) at 25 °C is subjected to a temperature jump which slightly increases the concentration of NH4*(aq) and OH¯ (aq). The measured relaxation time is 7.61 ns. The equilibrium constant for the system is 1.78 × 10-5 at 25 °C, and the equilibrium concentration of NH3(aq) is 0.15 mol dm3. (a) Calculate the rate constant for the forward step. Just value in 3 sig. fig., normal or exponential format, e.g. type in 1.16E6 meaning 1.16 x 10°, must use capital E here. Choose a kf = unit in the next question, must be in one of those.
The equilibrium NH3(aq) + H20(1) →NH4*(aq) + OH¯(aq) at 25 °C is subjected to a temperature jump which slightly increases the concentration of NH4*(aq) and OH¯ (aq). The measured relaxation time is 7.61 ns. The equilibrium constant for the system is 1.78 × 10-5 at 25 °C, and the equilibrium concentration of NH3(aq) is 0.15 mol dm3. (a) Calculate the rate constant for the forward step. Just value in 3 sig. fig., normal or exponential format, e.g. type in 1.16E6 meaning 1.16 x 10°, must use capital E here. Choose a kf = unit in the next question, must be in one of those.
Chemistry
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Chapter1: Chemical Foundations
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Transcribed Image Text:QUESTION 7
The equilibrium NH3(aq) + H20(1) →NH4*(aq) + OH (aq) at 25 °C is subjected to a temperature jump which slightly increases the concentration of
NH4*(aq) and OH (aq).
The measured relaxation time is 7.61 ns.
-3
The equilibrium constant for the system is 1.78 x 10-5
at 25 °C, and the equilibrium concentration of NH3(aq) is 0.15 mol dm
(a) Calculate the rate constant for the forward step.
Just value in 3 sig. fig., normal or exponential format, e.g. type in 1.16E6 meaning 1.16 x 10°, must use capital E here. Choose a
kf=
unit in the next question, must be in one of those.
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