Question

what is the partial We begin b) At what time will the th its initial value decomposition of the ulcum th an initial SO.Cl pressure of 150 torr. w ssure of this substance after 60 s? (b) At who nartial pressure of SO,Cl decline to one-tenth its in The first-order rate constant for the decompo N.O. 2 N,Os(8) — 4NO2(8) + O2(g), at 70 °C 10 . Suppose we start with 0.0250 mol of NO.( volume of 2.0 L. (a) How many moles of N,Os will remain aftal 5.0 min? (b) How many minutes will it take for the quantity of No, to drop to 0.010 mol? (c) What is the half-life of N.O. at 70 °C? 45 The reaction SO..(e) 50,(3) + C1,() is first order in so,cl, Using the following kinetic data, determine the magnitude and units of the first-order rate constant: Time (s) Pressure SO_C12 (atm) 1.000
14.44 please explain on paper please with formulas step by step

Answer 1

for a directly first order reaction, reaction nate is. proportional to the amount of realdant. Rake - K [₂06] Given that K = 6.82 x 10 s. for first order reaction (A3+ = (A) kt. (A] = Concentration at timet [A] = initial conc. t = time in sec. we have & (conc.] = moles [A3o = 0.025/2 t = 5x60 - 300 0.025/2 vol. (L) Sec.

[n] = 0.0125 -6.82 x 103x300 o 1.62 x 103 m. As volume = 22 moles – nolarity xuol. - 1.62x103 x2 - 3.24x10 moles. mun moles is 3.2ux 103 moles, After 5 = 0.0125 {A} - v. ol moles 2 L [A] - [Aloekt 0.005 0.0125 & 6.82x10 26.32x10't 0.005 0.4 0.0125 apply em on both sides ence - 6-82 x 10 xt) & lucou). - 6.82 xro 3xt t = 0.91629. = 13u see = 2.2 u min

the - lu (2) K for first order reaction 0.693 6. 82x10² - 101.6 E 102 see 10 69 min