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10 Nov 2019
The rate law for a reaction is found to be Rate = k[A]^2[B]. Which of the following mechanisms gives this rate law? I. A + B E (fast) E + B_(slow) rightarrow C + D II. A + B E (fast) E + A_(slow) rightarrow C + D III. A + A rightarrow E (slow) E + B rightarrow C + D (fast) A) I B) II C) III D) two of these E) none of these Equilibrium is reached in chemical reactions when A) The rates of the forward and reverse reactions become equal. B) The concentrations of reactants and products become equal. C) The temperature shows a sharp rise. D) All chemical reactions stop. E) The forward reaction stops. A 3.00-liter flask initially contains 3.00 mol of gas A and 1.50 mol of gas B. Gas A decomposes according to the following reaction: 3A 2B + C The equilibrium concentration of gas C is 0.146 mol/L. Determine the value of the equilibrium constant, K. A) 0.206 B) 0.163 C) 3.84 times 10^-3 D) 0.516 E) none of these
The rate law for a reaction is found to be Rate = k[A]^2[B]. Which of the following mechanisms gives this rate law? I. A + B E (fast) E + B_(slow) rightarrow C + D II. A + B E (fast) E + A_(slow) rightarrow C + D III. A + A rightarrow E (slow) E + B rightarrow C + D (fast) A) I B) II C) III D) two of these E) none of these Equilibrium is reached in chemical reactions when A) The rates of the forward and reverse reactions become equal. B) The concentrations of reactants and products become equal. C) The temperature shows a sharp rise. D) All chemical reactions stop. E) The forward reaction stops. A 3.00-liter flask initially contains 3.00 mol of gas A and 1.50 mol of gas B. Gas A decomposes according to the following reaction: 3A 2B + C The equilibrium concentration of gas C is 0.146 mol/L. Determine the value of the equilibrium constant, K. A) 0.206 B) 0.163 C) 3.84 times 10^-3 D) 0.516 E) none of these
Trinidad TremblayLv2
30 Oct 2019