4. The rate constant for the second order reaction 2NO2 → N2O4 is 2.79 L/mol •min at 48 °C. If the initial concentration of NO2 is 1.05 M. What is the half-life? а. 14.9 s c. 20.5 s b. 10.3 s d. 0.341 min 5. For the reaction below, Kp = 6.70 x 10-3 at 25°C. COCl2(g) = CO(g) + C12(g) A sample of COCI2 is placed in a closed 15.0-liter vessel at 25°C, and it exerts a pressure of 4.65 atm before decomposition begins. What will be the partial pressure of Cl2 at equilibrium (in atm)? a. 0.566 atm b. 0.206 atm с. 1.16 atm d. 0.173 atm

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Q: D-H

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