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11 Nov 2019
hous Cors Explainy onsuser MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question 1) 1) Which of the following statements is false? A) A catalyst increases the rote of reaction, but is not consumed. B) A catalyst increases the rate of the forward reaction, but does not alter the reverse rate. C) A catalyst alters the mechanism of reaction. D) A catalyst alters the activation energy E) A catalyst may be altered in the reaction, but is always regenerated 2) In which of the following solvents would you expect KBr to be most soluble? A) CoH i4 (hexane B) CoHe (benzene C) C6H 12 (cyclohexane D) CH CH2OH (ethanol) E) CCl4 (carbon tetrachloride) 3) The activation energy for the reaction CH3CO â CH3 + CO is 71 kJ/mol. How many times greater is the rate constant for this reaction at 170°C than at 150°C? B) 0.40 C) 5.0 D) 4.0 E) 2.5 A) 1.1 4) 4) At a certain temperature, the data below were collected for the reaction below. 2ici + H2 â 12 + 2HCl. Determine the rate law for the reaction. Initial concentrations (M Inital Rate of Formation of I ICI 0.10 0.20 0.10 0.10 0.10 0.050 MolL's 0.0015 0.0030 0.00075 A) None of the above B) rate = klidill HI C) rate k[ICIH2 D) rate = kl IC112[H2 12 E) rate kICIPIH2l
hous Cors Explainy onsuser MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question 1) 1) Which of the following statements is false? A) A catalyst increases the rote of reaction, but is not consumed. B) A catalyst increases the rate of the forward reaction, but does not alter the reverse rate. C) A catalyst alters the mechanism of reaction. D) A catalyst alters the activation energy E) A catalyst may be altered in the reaction, but is always regenerated 2) In which of the following solvents would you expect KBr to be most soluble? A) CoH i4 (hexane B) CoHe (benzene C) C6H 12 (cyclohexane D) CH CH2OH (ethanol) E) CCl4 (carbon tetrachloride) 3) The activation energy for the reaction CH3CO â CH3 + CO is 71 kJ/mol. How many times greater is the rate constant for this reaction at 170°C than at 150°C? B) 0.40 C) 5.0 D) 4.0 E) 2.5 A) 1.1 4) 4) At a certain temperature, the data below were collected for the reaction below. 2ici + H2 â 12 + 2HCl. Determine the rate law for the reaction. Initial concentrations (M Inital Rate of Formation of I ICI 0.10 0.20 0.10 0.10 0.10 0.050 MolL's 0.0015 0.0030 0.00075 A) None of the above B) rate = klidill HI C) rate k[ICIH2 D) rate = kl IC112[H2 12 E) rate kICIPIH2l
Jarrod RobelLv2
24 Jun 2019