Given the following description SKETCH a potential energy curve. The reaction has the following characteristics: Ea(fwd) =  150 kJ  and the  Ea(rev)  = 75 kJ. On your diagram label the activation energies, activated complex, reactants, products, location and value of the ΔH REVERSE.

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The following reaction is carried out at 25.0 °C and 1.00 atm: 2NO(g) + O2(g) →→ 2NO2(g) AH0 kJmol-1 Sº JK-¹mol-1 NO (g) -110.525 197.674 NO₂ (g) -393.509 213.74 O₂ (g) 0.00 205.0 Using the data in the table: • Calculate the enthalpy of reaction, A₁H, for the reaction: mol-1 • Calculate the entropy change, ASº, for the reaction: • Calculate AGO for the reaction: kJ mol-1 Is this reaction spontaneous or not spontaneous at this temperature and pressure? kJ JK-1 mol-1

9) Given the following equilibrium reaction below, indicate which direction the reaction will shift when the indicated stresses are applied (à, ß, or none), AND indicate how the K value will change (increase, decrease or stays same) with the stress. P = 1 atm, unless otherwise specified. ​​CO(g) + Cl2(g) ó COCl2(g) ​ H = –107.6 kJ/mol What will happen if:​​​​​Shift​​​K value i) The pressure is quadrupled​​​​_______​_________________​ ii) The reaction temperature is decreased​​_______​__________________ iii) More COCl2 gas is added​​​​_______​__________________ iv) The volume is doubled​​​​_______​__________________

For which one of the following reactions is Kp equal to Kc? CaCO3(s) = CaO(s) + CO₂(g) 2NH3(g) = 3H₂(g) + N₂(g) 302(g) = 203(g) SnO2(s) + 2H₂(g) Sn(s) + 2H₂O(g) NH41(s) NH3(g) + HI(g)

1. Which of the following conditions describe the two step reaction energy profile below? (choose all that apply) Ea PE - ΔΕ Reaction Coordinate The first step is the rate determining step The first step is exothermic The second step is the rate determining step The second step is exothermic The overall reaction is endothermic

Consider the following endothermic reaction: 4 PCl5 (g)   ⇋⇋   P4 (s)   +   10 Cl2 (g) How will the amount of Cl2 be affected if the total pressure of the system is increased? Select one: a. The concentration of Cl2 will increase. b. The concentration of Cl2 will decrease. c. The amount of Cl2 will not change.

$ . A sample of solld ammonium chloride was placed in an evacuated chamber, and then heated causing it to decompose according to the following reaction: NH4CI(S) NH3(g) + HCl(g) In a particular experiment the pressure of NH3(g) in the container was found to be 2.9 atm. Calculate the value of K₂ for the decomposition of NH4CI(s) at this temperature. Kp = R F Submit Show Hints Submit Answer 888 F4 % 5 T G Retry Entire Group 9 more group attempts remaining F5 Cengage Learning Cengage Technical Support A 6 MacBook Air Y F6 H & 7 ◄◄ F7 U J * 00 8 ► 11 F8 1 6a K ►► F9 O ) O F10 P 4) Previous Next F11 + " Save and Exit

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