If an observed rate law is rate = k[NO][Cl_2]^2, doubling the concentration of N
ID: 1073418 • Letter: I
Question
If an observed rate law is rate = k[NO][Cl_2]^2, doubling the concentration of NO and halving the concentration of Cl_2 will have what effect on the reaction rate? (A) increase the rate by a factor of eight. (B) leave the rate unchanged (C) double the rate (D) have the rate The rate of consumption of C_3H_6 is 0.45 M-s^-1. What is the rate of production of H_2O. 2C_3H_6 + 2NH_3 + 3O_2 rightarrow 2CH_2CHCN + 6H_2O (A) 0.15 M-s^-1 (B) 0.45 M-s^-1 (C) 1.35 M-s^-1 (D) 2.70 M-s^-1 Which energy diagram best matches an exothermic reaction with this mechanism? E + S ES (Fast) ES rightarrow E + P (Slow) The graph shows the change in concentration with time for two chemical species. Which balanced equation and value of the equilibrium constant is consistent with the data? Equation Equilibrium Constant (A) X rightarrow 2Y K_c = 8 (B) X rightarrow 2Y K_c = 16 (C) 2X rightarrow Y K_c = 2 (D) 2X rightarrow Y K_c = 4 The half-life of^99cma radioisotope commonly used in nuclear medicine, is about 6 hours. How much of a 5.0 mu g sample remains after 2 days? (A) 0.02 mu g (B) 0.6 mu g (C) 0.8 mu g (D) 3 mu g Which compound has the highest molar solubility in a neutral solution? (A) Agl, K_sp = 8.5 times 10^-17 (B) BaCO_3, K_sp = 2.6 times 10^-9 (C) Fe(OH)_3, K_sp = 2.8 times 10^-29 (D) ZnS, K_sp = 3 times 10^-23 Which will change the value of K_sp for silver azide, AgN_3? (A) Adding water to the solution. (B) Adding silver ions to the solution. (C) Removing azide ions from the solution. (D) Increasing the temperature of the solution. If solid Na_3PO_4 is added to a saturated aqueous solution of Ca_3(PO_4)_2 what will happen to the concentrate of Ca^2+ in solution? (A) It will decrease. (B) It will increase. (C) If will be unchanged. (D) It will become equal to the PO_4^3- concentration. A solution contains 0.002 M Pb^2+ and 0.002 M Ag^+. What happens when NaCl(s) is added to bring the chloride ion concentration to 0.01 M? (A) Neither PbCl_2 nor AgCl precipitate (B) Both PbCl_2 and AgCl precipitate. (C) PbCl_2 selectively Precipitates. (D) AgCl selectively precipitates. For Agl, the K-sp value is 8.5 times 10^-17 and for [Ag(CN)_2] the K_f value is 1.0 times 10^21. Which statement is true? (A) Agl is completely insoluble in a solution that contains CN^-. (B) Agl is less soluble in water than in a solution that contains CN^-. (C) Agl is more soluble in water than in a solution that contains CN^-. (D) Agl is equally soluble in water and in a solution that contains CN^-.Explanation / Answer
45. Answer:-D
Reaction is ist order in NO so doubling it's concentration would double the rate.
But reaction is iind order in Cl2 so halving it's concentration would reduce rate to 1/4th.
Overall rate reduced to one half.
46. A
Rate of production of water:- (1/3) of rate of consumption of C3H6