How do I mathematically express this reaction in terms of Qc

Calculate AS° for the reaction 2NO(g) + O2 (9)–→2NO2(9) Express your answer to one decimal place and include the appropriate units.

What is the work associated with the decomposition of liquid peroxide forming gaseous oxygen and liquid water at 281.65 K?

17. For which of the following highly exothermic processes would you expect AH" and AG* to be about the same? (a) 2 Al(s) + 3/2 02(g) - Al;0:(s) (c) 2 Na(s) + 2 H20(1) → 2 N2OH(aq) + H2(g) (d) 2 NO(g) - N;O(g) (e) 2 Al(s) + Fe2O;(s) - 2 Fe(s) + Al;Oa(s) (b) 2 Ha(g) + Ozl8) - 2 H;0(g)

21. Given the following two equations CH5OH(1) + 3 O2(8) 2 СO2(g) + 3 Н20(1) AH = -1370 kJ С-Н(8) + 3 О2(s) → 2 CO2(g) + 2 H2O(1) AH = -1410 kJ Calculate AH for the reaction C2H4(8) + H2O(1) CH5OH(I) ΔΗ- a. -2780 kJ b. 2780 kJ с. 40 kJ d. 40 kJ

40 kJ Reactants Na Activation Energy H CI 30 kJ Products Na CI 10 kJ Reaction Progress Na and HCl are colliding as shown below with an energy of 5 kJ. Na CI H Potential Energy [kJ]

Which of the following processes yields a AS = - ? O2 NO(g) + O2(g) ---> 2 NO2(g) NaCIO3(s)---> Na (aq) + CIO3(aq) COCI2(g) -- CO(g) + Cl2(g) CH3OH(1) ---> CO(g) + 2H2(g) None HII>

Use the following equilibria2CH4(g)  C2H6(g) + H2(g) Kc1 = 9.5 × 10-13CH4(g) + H2O(g)  CH3OH(g) + H2(g) Kc2 = 2.8 × 10-21to calculate the value of Kc' for the following reaction:2CH3OH(g) + H2(g)  C2H6(g) + 2H2O(g)

3. For the following reactions, ldentify the unknown, the ?, and circle the change for each of the energy systems. Changes in the Strong Energy Interaction are determined by the net amount of bounds broken or formed and changes in the Electric Energy are determined by the separation of like charges. i. 6429Cu → 6428NI + ? + V a. The unknown "?" is b. PEelectric: increases, decreases, no change c. PEstrong: increases, decreases, no change d. Energy: Exothermic e. Mass: increases, decreases, no change ii. 189F + ? → 1830 + v a. The unknown "?" is b. PEelectric: increases, decreases, no change c. PEstrong: increases, decreases, no change d. Energy: Exothermic e. Mass: increases, decreases, no change

From a molecular viewpoint, where does the energy emitted inan exothermic chemical reaction come from? Why does thereaction mixture undergo an increase in temperature eventhough energy is emitted?