For which of the substances below is AH°f=0? ! Multiple Choice • O2(9) o N2(0) o...
For which of the substances below is AH°F = 0? Multiple Choice N2() O2(g) Na(g) Xe0)
In which of the following substances does AHF = 0? . Multiple Choice Ο H2O(1) Ο NaCl(s) Nacis) Ο None of these Ο Br20) Ο O2(g)
2NO(g) ---> N2(g) + O2(8) AH =-180.6 kJ N2(g) +02(g) +C17(9) ---> 2NOC19) AH = +103.4 kJ Find the AH of the following reaction: 2NOCI(9) --->2NO(g) +CH (2)
For which of the substances below is ΔΗ°= 0? Multiple Choice Ο Ο Ο Ο
Given the standard enthalpy changes for the following two reactions: (1) N2(g) + O2(9)— 2NO(g) AH = 181.8 kJ (2) N2(g) +202(9)—2NO29) AH° = 66.4 kJ what is the standard enthalpy change for the reaction: (3) 2NO(g) + O2(9) *2NO2(9) AH° = ? Submit Answer
Which of the following reactions would have the greatest difference between AH and AE? Multiple Choice 0 CzHelg) + 40219) -> 300219) + 2H200 O Zn2(aq) + 20H(aq) -> Zn(OH12(s) O ZA15) + 6HC(aq) -> 2A1C1zfaq) + 3H2(9) CIS) + O2(0) --> CO2(0) Cocozis) -> Cos). C020)
Which of the following processes is exothermic, given the following: N2(g) +2 02(g) --> N2O4(1) Дн° = 9.67 kJ/mol N2(g) +2 02(g) -->2 No2(9) Дн° = 6770 kJ/mol Multiple Choice 2 N2(g) +4 O2(g) --> 2 N2O4(1) o 2 N2(9) +4 O2(9) --> 4 NO2(9) o %N2(9) + O2(9) --> %N2O4(1) o N2O4() -> N2(9) + 2 029) o 2 N2(9) +4 O2(9) --> 2 No2(0) + N2O4(0)
Calculate AH for the reaction N2H4(0) + O2(g) → N2(g) + 2 H2O(1) given the following data: Equation AH (kJ) 2 NH3(g) + 3 N2O(g) → 4 N2(g) + 3 H2O(l) -1010 N2O(g) + 3 H2(g) → N2H4(1) +H2O(1) -317 2 NH3(g) + 1202(g) → N2H4(1) + H20(1) -143 H2(g) + 1202(g) → H2O(H -286 AH=
5) Given the following reactions (8) 2413) (9) LIST-HA AH = +180.7 kJ N2(g) + O2(g) 2NO(g) 2NO(g) + O2(g) +2NO2 (8) AH =-113.1 kJ the enthalpy for the decomposition of nitrogen dioxide into molecular nitrogen and oxygen 2NO2(g) →N2 (8) + 202 (8) HD - - kJ
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)