How many of the processes below have a positive AS? H,O) - H;0(g) The heating of 35 g of water from 99 C to 100°C Cu()-Cu(s) 2 NH(g) - Na(g) + 3 H2(g) OA.O 084 OD.2 OE3

Consider the Haber process: N2(g)+3H2(g)2NH3(g);H=91.8kJ The density of ammonia at 25C and 1.00 atm is 0.696 g/L. The density of nitrogen, N2, is 1.145 g/L, and the molar heat capacity is 29.12 J/(mol C). (a) How much heat is evolved in the production of 1.00 L of ammonia at 25C and 1.00 atm? (b) What percentage of this heat is required to heat the nitrogen required for this reaction (0.500 L) from 25C to 400C, the temperature at which the Haber process is run?

Is the formation of ozone (O3(g)) from oxygen (O2(g)) spontaneous at room temperature under standard state conditions?

Would the amount of heat absorbed by the dissolution in Example 5.6 appear greater, lesser, or remain the same if the heat capacity of the calorimeter were taken into account? Explain your answer.

Using values of fH and S, calculate rG for each of the following reactions at 25 C. (a) 2 Na(s) + 2 H2O() 2 NaOH(aq) + H2(g) (b) 6 C(graphite) + 3 H2(g) C6H6() Which of these reactions is (are) predicted to be product-favored at equilibrium? Are the reactions enthalpy- or entropy-driven?

Gas A2 reacts with gas B2 to form gas AB at a constant temperature. The bond energy of AB is much greater than that of either reactant. What can be said about the sign of H? SSurr? S? Explain how potential energy changes for this process. Explain how random kinetic energy changes during the process.

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>

Calculate H for the following: Co3O4 (s) -> 3 Co (s) + 2 O2 (g) H = ?? Given ...EQN A: Co (s) + 1⁄2 O2 (g) -> CoO (s) H = -200 kJEQN B: 3 CoO (s) + 1⁄2 O2 (g) > Co3O4 (s) H = -150 kJCalculate an answer in addition to showing your work clearly....

When wine is exposed to air, the ethyl alcohol is oxidized to acetic acid: C,H,OH() +O2(g) → CH;CO,H() + H,O(1) AH • AG;° -174.8. • S°. -277.7 -487.0 -285.8 kJ/mol ㅇ -392.5 -237.1 kJ/mol 160.7205.0 160.0 69.9 J/mol•K • three ways: • calculate AG° directly calculate AH° and AS°; calculate from AG° = AH° – TAS Calculate AS universe if > 0 8.

Given the standard enthalpy changes for the following two reactions:(1) 2Fe(s) + O2(g) -> 2FeO(s)...... ΔH° = -544.0 kJ(2) 2Zn(s) + O2(g) -> 2ZnO(s)......ΔH° = -696.6 kJwhat is the standard enthalpy change for the reaction:(3) FeO(s) + Zn(s) -> Fe(s) + ZnO(s)......ΔH° = ?_____ kJ