AIISwer. 2. Target Reaction: 2 2 2 Step Reactions: 200_(8) + H 0(g) → C H...
From the following data, C(graphite) + O2(g) → CO2(g) AHrxn = -393.5 kJ/mol H2(g) + O2(g) → H200) AH"rxn = -285.8 kJ/mol 2C2H6(g) + 702(g) -> 4CO2(g) + 6H2O(l) Arxn=-3119.6 kJ/mol Calculate the enthalpy change for the reaction: 2 C(graphite) + 3H2(g) + C2H668)
QUESTION 2 Calculate the heat of reaction (energy of reaction) in kJ/mol for the following reaction. Mind the correct sign of your answer value! 2C2H6(g) + 702(g) —+ 4CO2(g) + 6H2O(g) Use the following bond energies for your calculation. UŻ OU Bond energies (kJ/mol) Bond Energy Bond Energy H-H 436 (-O 336 (-H 416 C=C 598 N-H 391 O=0 498 467 C=0 803 c-c 356 N=N 946 0-0 146 CEO 1073
8. Find ∆H◦ of the reaction 2C2H6(g) + 7O2(g) = 4CO2(g) + 6H2O(g), as it is written, given the following: 2C(s) + 3H2(g) = C2H6(g), ∆H◦ = −84.68 kJ, 2H2(g) + O2(g) = 2H2O(g), ∆H◦ = −483.6 kJ, C(s) + O2(g) = CO2(g), ∆H◦ = −393.5 kJ. (A) −3194 kJ (B) −3109 kJ (C) −2940 kJ (D) −2855 kJ (E) −1428 kJ
For which of the following reactions is AS° > 0. Choose all that apply. 2C2H6(g) + 702(g) + 4CO2(g) + 6H2O(g) ONH4HS(s) + NH3(g) + H2S(g) S(s,rhombic) + 2CO(g) → SO2(g) + 2C(s,graphite) N2(g) + 3H2(g) + 2NH3(g) 2H2O(g) + 2Cl2(g) + 4HCI(g) + O2(g) Submit Answer Retry Entire Group 6 more group attempts remaining
Determine the sign of As for each of the following reactions. a. CH4(g) + 202(g) → 2H2O(l) + CO2(g) b. 2C2H6(g) + 702(g) + 6H2O(l) + 4CO2(g) c. Ca(OH)2(s) > CaO(s) + H2O0) .
Question 9 For which of these reactions will the difference between AH° and AEº be the greatest? NO(g) + O3(g) —+NO2(g) + O2(g) 4NH3(g) + 5O2(g) + 4NO(g) + 6H2O(g) 2C2H6(g) + 702(g) + 4CO2(g) + 6H20(1) 2H2O2(1) +2H2O(1) + O2(g) 0 CaCO3(s) CaO(s) +CO2(8)
Consider the following reaction. CH,(8) + 30,(8) 200,(g) + 2 H2O(g) Compound C, H.() 0,(g) CO2(g) H2O(g) AH; (kJ/mol) 52.4 0 -393.5 -241.8 What is the AH of the reaction? -687.7 kJ/mol -1323.0 kJ/mol -1218.2 kJ/mol 1323.0 kJ/mol
predict the enthalpy of reaction from the average bond enthalpies for the following reaction 2C2H6(g) + 7O2(g) ---> 4CO2(g) + 6H2O(g) ( in kJ) Bond Enthalpy (kJ/mol) H-H 436.4 H-O 460 C-H 414 C-C 347 C=C 620 C-O 351 O-O 142 O=O 498.7 C=O 745 C=O 799 (carbon dioxide)
1. The enthalpies of the following reactions can be measured. CH, (g) + 20, (g) CO2(g) + 2H,0 (g) AH = -802.4 kJ CH,OH (g) +/, 0, (g) CO2(g) + 2H,0 (g) AH = -676 kJ Use these values and Hess's law to determine the enthalpy change for the reaction CH, (g) +'/20 (8) CH,OH(g)
Which of the following reactions could be considered a "precipitation" reaction? NaOH(aq) + HCl(aq) + NaCl(aq) + H2O(1) 2H2O(1) + 2H2(g) + O2(g) + 2Nal(aq) + Pb(NO3)2(aq) + 2NaNO3(aq) + Pbl2(s) 2C2H6(g) + 702(g) + 4CO2(g) + 6H2O(1) None of these