1. Thermo Grudgeball

2. Round 1
Find ∆Horxn for the reaction of nitrogen gas reacting with oxygen gas to produce nitrogen dioxide.
N2(g) + O2(g)  2NO(g) ∆Ho = kJ
2NO(g) + O2(g)  2NO2(g) ∆Ho = kJ

3. Round 1
Find the heat of combustion of CH4. The heats of formation are as follows: ∆Hof (CH4(g)) = kJ mol-1, ∆Hof (CO2(g)) = kJ mol-1, ∆Hof (H2O(g)) = kJ mol-1,

4. Round 1
If ______ is negative and ___________ is positive, a reaction will never be spontaneous.

5. Round 1
Water boils at 100oC with a molar heat of vaporization of kJ. At 100oC, what is the entropy change when water condenses?
H2O(g)  H2O(l)

6. Round 1 In which reaction does the entropy increase and why?
A. 2SO2(g) + O2(g)  2SO3(g)
B. CO(g) + H2O(g)  H2(g) + CO2(g)
C. H2(g) + Cl2(g)  2HCl(g)
D. 2NO2(g)  2NO(g) + O2(g)

7. Round 1