g50.941molatomic masselectronegativity1.63kJ50.6molelectron affinitykJ650.9molionization energykJ22.8molheat of fusionYou may find additional useful data in the ALEKS Data tab.Does the following reaction absorb or release energy?releaseabsorb(1) - v (g)v" (g) + eCan't be decided with the data given.yesIs it possible to calculate the amount of energy absorbedor released by reaction (1) using only the data above?noIf you answered yes to the previous question, enter theamount of energy absorbed or released by reaction (1):||kJ/molDoes the following reaction absorb or release energy?releaseabsorb(2)v (g) + e- V (g)Can't be decided with the data given.yesIs it possible to calculate the amount of energy absorbedor released by reaction (2) using only the data above?noIf you answered yes to the previous question, enter theamount of energy absorbed or released by reaction (2):|kJ/mol

50.941 mol atomic mass electronegativity 1.63 kJ 50.6 mol electron affinity kJ 650.9 mol ionization energy kJ 22.8 mol heat of fusion (ou may find additional useful data in the ALEKS Data tab. Does the following reaction absorb or release energy? release absorb (1) v*(g) + e →v (g) Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): O kJ/mol Does the following reaction absorb or release energy? release absorb (2) v (g) + e - v Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): |kJ/mol O O OO

50.941 mol atomic mass electronegativity 1.63 kJ 50.6 mol electron affinity kJ 650.9 mol ionization energy kJ 22.8 mol heat of fusion (ou may find additional useful data in the ALEKS Data tab. Does the following reaction absorb or release energy? release absorb (1) v*(g) + e →v (g) Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): O kJ/mol Does the following reaction absorb or release energy? release absorb (2) v (g) + e - v Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): |kJ/mol O O OO

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter11: Chemical Kinetics

Section: Chapter Questions

Problem 11.49PAE: The rate of photodecomposition of the herbicide piclo- ram in aqueous systems was determined by...

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Calculate the water activity aW of a solution of 10 mass% of sucrose in 100g of water (Molecular mass = Molecular weight MW: MW water H2O = 18; MW saccharose C12H22O11 = 342)
Given ΔHoformation, (CO2(g)) = -395,51 kJ/mol ΔHoformationCp(CO2) = 37.11J/Kmol-1, ΔHoformationCp(O2) = 29.355 J/Kmol-1, and ΔHoformationCp(C) = 8.527J/Kmol-1, T2 = 125o, T1 = 20oC. Find ΔH2o for the reaction: C(s) + O2(g)-à CO2(g), when Cp is independent of T.
Please answer all subquestions ASAP, a like is guaranteed.
An enzyme-catalyzed reaction is studied in the absence and presence of an inhibitor and the following data was obtained. [S] in mmoles/L Velocity in mmoles/L/min-1 No inhibitor With inhibitor 1.25 1.72 0.98 1.67 2.04 1.17 2.50 2.63 1.47 5.00 3.33 1.96 10.00 4.17 2.38 Calculate the Km of the enzyme in the reaction without inhibitor ________________________ Km’ of the enzyme in the reaction with inhibitor ________________________ Vmax of the uninhibited reaction ________________________ Vmax’ of the inhibited reaction ________________________
Circumstances for the use of nRIn(V2/V1) and CvIn(T2/T1) in calculating ∆S
Consider an urban atmosphere containing 100 ppbv NOx and 100 ppbv O3 with T=298K and P=1 atm. NO + O3 --> NO2 + O2 (1) NO2 + hv --> NO + O3 (in the presence of O2) (2) With k1=2.2x10-12 exp(-1430/T) cm3 molecule-1s-1 and k2=1x10-2 s-1 (ie, at noon). Calculate the steady-state concentration of NO and NO2 at noon based on the above reactions.
Assume no acid-base catalysis occurs and the following data: Under biological conditions (310 K) 1. dGb = -20.00 kJ/mol. 2. The dG of E +S binding to ES (dGs) is -3.00 kJ/mol. 3. dGd mismatch of energy in ES = +2.00 kJ/mol. What is the catalytic power (kcat/k_uncat) at 360 K? Use 1 decimal place.
The rate of photodecomposition of the herbicide piclo- ram in aqueous systems was determined by exposure to sunlight for a number of days. One such experiment produced the following results. (Data from R.T. Hedlun and C.R. Youngson, “The Rates of Photodecomposition of Picloram in Aqueous Systems," Fate of Organic Pesticides in tbe Aquatic Environment, Advances in Chemistry Series, #111, American Chemical Society (1972), 159—172.) Exposure Time, t (days) [Pidoram] (mol L_1) 0 4.14 X 10-6 7 3.70 X 10-6 14 3.31 X 10-6 21 2.94 X 10~6 28 2.61 X 10~6 35 2.30 X 10-6 42 2.05 X 10-6 49 1.82 X 10"6 56 1.65 X 10-6 Determine the order of reaction, the rate constant, and the half-life for the photodecomposition of picloram.
For the reduction 2FeCl3 + SnCl2 =====➔ 2 FeCl2 + SnCl4 in aqueous solution the following data were obtained at 25oC t(min) 1 3 7 11 40 Y 0.01434 0.02664 0.03612 0.04102 0.05058 Where y is the amount of FeCl3 reacted in moles per liter. The initial concentrations of SnCl3 and FeCl3 were respectively, 0.03125, 0.0625 moles/L. a.)Show that the reaction is third order (derive the rate law), and b.) calculate the average specific rate constant.
Ff.24. With explanation ......
Although there are accurate graphical methods available for determining Vmax and Km of an enzyme-catalyzed reaction, sometimes these parameters can be quickly estimated by examining the values of Vo as [S] increases. Estimate the values of Vmax and Km of the reaction catalyzed by an enzyme in which the following data were obtained:
The company performs accelerated ageing studies in which a suspension of D is stored at different temperatures. They obtain the degradation rate constants in the table below. Calculate the rate constant for degradation at 25 ºC. (45 % of marks) T / ºC k / d-1 40 0.28 50 0.56