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- 2A + B --> 3C + 2D The rate of formation of C in the above reaction is measured at 2.2 mol dm-3 s-1. What are the rates of formation and consumption of D, A, and B? Ans: 1.5 mol dm-3 s-1, 1.5 mol dm-3 s-1, and 0.73 mol dm-3 s-1 respectively.TLC is often used to monitor the progress of chemical reactions. Forexample for the reaction A + B --> C, how could you determine when the reaction is done? Explain thoroughly.Two prominent gas-phase atmospheric reactions are written below with rate coefficients in units of cm3 molecule-1 sec-1 (T= temperature in K and [M] = the number density of air in molecules cm-3). Convert theserate constants to ppm-1 min-1, again assuming standard sea-level pressure and T = 288 K.i. O + O2 =O3 k = [M]*6.0*10^-34*(T/300)^-2.3ii. NO + O3 = NO2 + O2 k = 3.0*10^-12*e^(-1500/T)
- The Arrhenius parameters for the gas-phase decomposit ion of cyclobutane, C4H8(g)→ 2 C2H4(g). are log(A/s-1) = 15.6 and Ea = 261 kJ mol- 1. What is the ha lf- life of cyclobutane at (a) 20 °C, (b) 500 °C?A certain first-order reaction ( A --> B) is 25% complete in 42 min at 25oC. What is its rate constant? ( Answer in min-1 with 2 sig figs.)What is rate of appearance of NO2?
- The rate of change of molar concentration of CH3 radicals in the reaction 2CH3(g) --> CH3CH3(g) was reported as d[CH3]/dt = -1.2 mol dm-3s-1 under particular conditions. What is the rate of formation of CH3CH3?If A+2B to 3C+2D and the rate of disappearance of A is 2.0x10^-3, what is the rate of appearance of C?Describe the reaction mechanism for the hydrolysis of 2-bromo-2-methylpropane [CH3C(CH3)2Br] with aqueous hydroxide ions (OH-).The description should be detailed and must include the type of bond fission that takes place. You may sketch and insert suitable diagrams to aid your description if you wish
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