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11 Nov 2019
hous Lork Explain onsuer une alternative that best completes the statement or answers the question. A) A B) A catalyst catalyst increases the rate of reaction, but is not consume 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 regencrated. 2) In which of the following solvents would you expect KBr to he most soluble? A) C6H14 hexane) B) CoH6 (benzene C) CH12 (cyclohexane D) CH,CH OH (ethanol) E) CCI4 (carbon tetrachloride) 3) 3) The activation energy for the reaction CHOO 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? A) I.I B) 0.40 C) 5.0 D) 4.0 E) 2.5 4) At a certain temperature, the data below were collected for the reaction below A) Determine the rate law for the reaction. Initial concentrations (M ICI) 0.10 0.20 0.10 MolL-s 0.0015 0.0030 0.00075 0.10 0.10 0.050 A) None of the above B) rate klICI 11H21 C) rate kIICIIH2P D) rate kjICIP[H:12 E) rate = k[ ICI PlHI
hous Lork Explain onsuer une alternative that best completes the statement or answers the question. A) A B) A catalyst catalyst increases the rate of reaction, but is not consume 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 regencrated. 2) In which of the following solvents would you expect KBr to he most soluble? A) C6H14 hexane) B) CoH6 (benzene C) CH12 (cyclohexane D) CH,CH OH (ethanol) E) CCI4 (carbon tetrachloride) 3) 3) The activation energy for the reaction CHOO 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? A) I.I B) 0.40 C) 5.0 D) 4.0 E) 2.5 4) At a certain temperature, the data below were collected for the reaction below A) Determine the rate law for the reaction. Initial concentrations (M ICI) 0.10 0.20 0.10 MolL-s 0.0015 0.0030 0.00075 0.10 0.10 0.050 A) None of the above B) rate klICI 11H21 C) rate kIICIIH2P D) rate kjICIP[H:12 E) rate = k[ ICI PlHI
Jean KeelingLv2
24 Oct 2019