5. Given the following data: 2 H2(g) + O2(g) → 2 H20 (1) AH° = -571.6 kJ N,Os (g) + H20 (1) ► 2 HNO (1) AH = -76.6 kJ N2(g) + 3 O2 (g) + H2(g) → 2 HNO, (1) AH = -348.2 kJ a. Calculate the AHⓇ for the reaction: 2 N2 (g) + 5 O2(g) → 2 N2Os (g)
Use the following equations N2 (g) + 3 H2 (g) 2 NH3 (g) N2 (g) + O2 (g) → 2 NO (g) 2 H2 (g) + O2 (g) + 2 H20 (1) DH = -99.22 kJ DH = + 180.5 kJ DH = - 571.6 kJ to calculate the enthalpy change for the reaction 4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H20 (1) DH = ?
Which reaction is accompanied by an increase in entropy? A N2(g) + 3 H2(g) – 2 NH3(g) B. Ba(OH)2(s) + CO2(g) → BaCO3(s) + H2O(1) C. NH4NO2(s) – N2(g) + 2 H20(0) D.2 C2H2(g) + 5 O2(g) – 4 CO2(g) + 2 H2O(s) E. C8H16(1) + 12 O2(g) — 8 CO2(g) + 8 H 20(1)
1&2
1) Identify the oxidation state of each element in the following. (a) Na2SO4 (b) MnO4 (c) KClO3 (d) CH OH 2) Identify the oxidation state of nitrogen in each of the following (a) NO:- (b) NO2 (c) NO2 (d) HNO2 (e) NO (1) N20 (g) N2 (h) NH2OH () N2H4
5. Given the following chemical equilibria, N2(g) + O2(g) = 2 NO(g) N2(g) + 3 H2(g) = 2 NH3(g) H2(g) + 1/2 O2(g) =H2O(g) Determine the method used to calculate the equilibrium constant for the reaction below. 4 NH3(g) + 5 O2(g) = 4 NO(g) + 6 H2O(g) K
2. Which reaction produces a decrease in the entropy of the system? 4 NO (g) 6 H20 (g) A) 4 NH3 (g) +5 O2 (g) B) 2H2 (g) 02 (g) 2H20 (I) 2 Hg (l)O2(g) C) 2 HgO (s)2 D) UF6 (s)U (s) + 3F2 (g) E) H20 (s) H20 (g)
The formation of nitrous acid occurs as shown below: 202(g) + N2 (g) + H2(g) 2 HNO2 (aq) Apply Hess's law and calculate the AH (in kJ) for the above reaction. Useful thermochemical data are given below. Just type the final numerical answer with proper sign and sig figs. NH4NO2 (aq) -N2(g) + 2 H20 (1) NH3(aq) + HNO2 (aq) - NH4NO2 (aq) 2NH3(aq) + N2(g) + 3 H2(g) H2(g) + 1/2O2(g) + H20 (1) AH = - 320.1 kJ...
QUESTION 1 H20 is balanced, the coefficient in front of the O2 is CO2 02 When the equation C2H4 1 2 3 4 QUESTION 2 How many grams of N2 is needed to fully react with 9.0 grams of H2 in the equation 2 NH3 3H2 N2 7.0 g 14 g 21 g 42 g OOO
QUESTION 1 H20 is balanced, the coefficient in front of the O2 is CO2 02 When the equation C2H4 1 2 3 4 QUESTION...
For which reaction is AH°xn= AH? A) 2 H2(g) + O2(g) → 2 H,0(1) B) 2 C(graphite) + H2(g) → C2H2(9) C) C(diamond) + O2(g) → CO2(g) D) NO(g) + 1/2O2(g) → NO2(g)
Given that the reaction 2 H2(g) O2(g)2 H20(g) is exothermic, which of the following is true of the reaction 2 H2O(g) 2 H2(g) + O2(g) ? Its activation energy is greater than that of 2 H2(g) +O2(g) 2 H2O(g) Its activation energy is lower than that of 2 H2(g)+ O2(g) 2 H2O(g There is no relationship between its activation energy and that of 2 H2(g) + O2(g )-+ 2 H20(g) ts activation energy is the same as that of 2...