(a) The following kinetic data were obtained for the reaction: 2 A+B C+2D [B], (×10-³ mol-dm³) No. [A], (x10-³ mol-dm³)

[answerhappygod]

A The Following Kinetic Data Were Obtained For The Reaction 2 A B C 2d B 10 Mol Dm No A X10 Mol Dm 1 (33.37 KiB) Viewed 17 times

(a) The following kinetic data were obtained for the reaction: 2 A+B C+2D , (×10-³ mol-dm³) No. [A], (x10-³ mol-dm³) 1 1.5 Rate (mol-dm-³-5-³) 3.7 x 10 1.5 3.0 1.5 7.4 x 10-7 22.0% 10-7 3.0 4.5 2.7 ? (1) Write the rate law; and the overall order of reaction [3 marks] (1) Determine the rate constant value. [2 marks] (iii) Predict the reaction rate for No. 4. [2 marks] (iv) Given the . is 1.5x 10³ mol-dm³, estimate the half-life of A. [3 marks] (b) Methane is a by-product of industrial processes in food production. Reaction with hydroxyl radical, OH, is the main path by which CH is removed from the lower atmosphere. CH4 (g) + OH- (g) CH: (+H:O (@ T(K) 206 0.295 x 10 200 0.241 x 10 ke (dm³-mol-¹-5-¹) From the above data, calculate the: (1) activation energy. E. [4 marks] (ii) pre-exponential factor, A [4 marks] If this bimolecular gas phase reaction has 4 = 1.13 x 10° dm³mol ¹s¹¹ and E. = 14.1 kJmol¹ as the Arrhenius parameters; calculate the (iii) rate constant, [4 marks] the rate of consumption of CH, when the average [OH] to be 1.5 x 101 moldm³ and [CH.] to be 40 nmoldr³ at the temperature of -10°C. [3 marks] +234 3