4. For the reaction: 2NO2 (g) 6N20(g) at 298 K, The value of AH° and Asº are -58.03 kJ and -176.6J/K, respectively. (a) What is the value of AG° at 298 K? (b) At what temperature would this process be spontaneous?
20. What is AS at 298 K for the following reaction? CH4(g) + N2(g) → HCN(g) + NH3(g); AH = 164.1 kJ; AGⓇ = 159.1 kJ at 298 K a. 17 J/K b.5.5 x 102 J/K c. 5.3 x 102J/K d. 1.1 x 10 J/K e. 2.0 J/K 21. Given the following, determine 208 Kunne male
AU for the reaction CH4 (8) + 2O2(g) - CO2(8) + 2H2O(l) in kJ at 298 K is AH(CH,) =-74.6kJ / mol AH (0) = -393.5kJ / mol AH,(4,0) =-285.8kJ / mol 1 A. -885.5 kJ B.668 kJ C. 885.5 kJ D.-668 kJ
QUESTION 23 - For the reaction below at 298 K: 4NO (9) N20 (9) + N203 (9) AH = -192.7 kJ and AS = -308.2 J/K Which of the following statements is TRUE? AG >0 at 298K At higher temperatures, the reaction will be spontaneous At lower temperatures, the reaction will be spontAreous The reaction is spontaneous at all temperatures. None of the above are true. QUESTION 24 What is Asº at 298 K for the following reaction? 2 H2S(g)...
The answer key says it should be: -285.8 kJ 2. For the reaction CH4 (g) + 202 (g) → CO2 (g) + 2H20 (1) AH° = -890.2 kJ Given that AH; CO2 (8) = - 393.5 k) and AH? CH4 (8) = -74.9 kJ, What is the enthalpy of formation of water? - 34.2 313 5202
What is AG at 298 K for the following reaction? H2(g) + Brz(9) -2HBr(g): AH = -103.8 kJ; AS = 21.3 J/K at 298 K -110.1 kJ 6.451 * 10 kJ 97.45 kJ -6.451 x 10'
CH4(g) + 2O2(g), AH° = 803 kJ which of the following For the following reaction, CO2(g) + 2H2O(g) = will increase K? Select one: O a. increase the temperature of system O b. none of the above O c. decrease number of moles of methane O d. all of the above O e increase volume of system
What is the A,G for the following reaction (in kJ molt) at 298 K? CH4 (g) + 2 O2(g) = CO2 (g) + 2 H20 (g) The conditions for this reaction are: PCH4 = 1.51 bar Po2 = 1.33 bar Pco2 = 0.21 bar PH2O = 0.62 bar You will also need to use Appendix Il in your textbook (containing standard Gibbs energies of formation).
b Calculate AH°, AS, and AGº for the following reaction at standard conditions: CH4 (9) + H2O(g) + CH3OH(1) + H2 (9) ΔΗ° = kJ AS = J/K AG kJ Submit Submit Answer Retry Entire Group 9 more group attempts remaining