biscms/mod/ibis/view.php?id 5459420 C a Search Jump to. Print Coloulslor Periodi

Question

biscms/mod/ibis/view.php?id 5459420 C a Search Jump to. Print Coloulslor Periodic Table Question 2 of 25 University Science Books preserted by Sapling Leaming General Chemistry 4th Edition The decomposition of N2Os can be described by the equation t (s) IN-Ol (M) 2.01 155 1.82 1.50 1-20 486 Given these data for the reaction at 45°C in carbon tetrachloride solution calculate the average rate of reaction for each successive time interval. Interval: s to 155 s 155 s to 466 s 466 s to 825 s Number Number Number Mis Reaction rate: M/s Previous ve Up & View Sautien Check Answer Next Ex

Explanation / Answer

Ans. Average rate, r = (Change in concertation) / time taken

            Where, Change in concertation (dX) = (final - initial) concertation

                        Time taken (dT) = Final time – Initial time

#1. 0 – 155 s

            dX = 1.82 M – 2.01 M = -0.19 M

            dT = 155s – 0 s = 155 s

Now,

            Rate, r1 = dX / dT = (-0.19 M) / 155 s = -0.001226 M s-1

Note: The –ve sing of rate (-0.001226 M s-1) indicates that the concertation N2O decreases during the reaction time.

#2. 155 s – 466 s

            dX = 1.50 M – 1.82 M = -0.32 M

            dT = 466 s – 155 s = 311 s

Now,

            Rate, r2 = dX / dT = (-0.32 M) / 311 s = -0.001029 M s-1

#3. 466 s – 825 s

            dX = 1.20M – 1.50M = -0.30 M

            dT = 825 s – 466 s = 359 s

Now,

            Rate, r3 = dX / dT = (-0.30 M) / 359 s = -0.000836 M s-1

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.