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Notes_Class_Question - Chem 162 IN-CLASS QUESTION 4 Prof Norman The reaction 2 N2O5(g 4 NO2(g O2(g is spontaneous at 298 K and 1 atm Which of the

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Chem 162 IN-CLASS QUESTION 4 Prof. Norman The reaction 2 N 2 O 5 (g) 4 NO 2 (g) + O 2 (g) is sponta- neous at 298 K and 1 atm. Which of the following are true? a. The reaction rate = d[N 2 O 5 ]/dt. b. d[N 2 O 5 ]/dt = 2{d[O 2 ]/dt}. c. Δ G ° < 0. d. The activation energy E a > 0. e. Raising the temperature increases the rate.
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Chem 162 IN-CLASS ANSWER 4 Prof. Norman All five statements are true: a. Rate may be expressed as the change in concentra- tion with time of any reactant or product. b. The derivatives for different reactants and products are related by the reaction stoichiometry. c. Spontaneity under standard conditions Δ G ° < 0. d. Activation energy E a is always > 0. e. Raising the temperature always increases the rate.
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Chem 162 IN-CLASS QUESTION 5 Prof. Norman Arrange the following substances in order of increasing vapor pressure at room temperature. Assume you are comparing the vapor pressures measured for 1 mole of each substance.
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This note was uploaded on 05/08/2008 for the course CHEM 162 taught by Professor N. during the Spring '08 term at University of Washington.

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Notes_Class_Question - Chem 162 IN-CLASS QUESTION 4 Prof Norman The reaction 2 N2O5(g 4 NO2(g O2(g is spontaneous at 298 K and 1 atm Which of the

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