A 0.422g sample of pentane is placed 4 L reaction vessel with excess O2 . The mixture is then ignited and the sample burns with complete combustion. What will be the partial pressures of CO2 and of H2O in the reaction vessel if the final temperature is 300°C?  C5H12 + 8O2 ---> 5CO2 + 6H2O

Sulfure dioxide is the effluent gases from coal-burning electric power plants is one of the principal causes of acid rain. one method for reducing sO2 emissions involves partial conversion of SO2 to H2S, followed by catalytic conversion of H2S and the remaining SO2 to element sulfur: 2H2S(g) + SO2(l) --> 3S(s) + 2H2O(g) Use appendix B Mcmurry, calculate delta G and show it is spontaneous at 25 degrees celsius. Why does this reaction become nonspontaneous at high temperatures? Estimate temperature which the reaction becomes non spontaneous.

Can you help w/ #3?

The initial concentrations or pressures of reactants and products are given for each of the following systems. Calculate the reaction quotient and determine the direction in which each system will proceed to reach equilibrium. (The system is considered in equilibrium if Kc and Qc are within 5% of each other.) (a.) 2 SO3(g)  2 SO2(g) + O2(g) Pi(SO3) = 0.100 atm, Pi(SO2) = 1.10 atm, Pi(O2) = 1.20 atm, Kp = 5.5 atm   What is the reaction quotient?   What direction will the reaction shift to?        LEFT or RIGHT?   (b.) 2 NO(g) + Cl2(g)  2 NOCl(g) Pi(NO) = 1.25 atm, Pi(Cl2) = 1.25 atm, Pi(NOCl) = 0 atm,  Kp = 3.1 ✕ 103   What is the reaction quotient?   What direction will the reaction shift to?        LEFT or RIGHT?   (c.) N2(g) + O2(g)  2 NO(g) [N2]i = 0.120 M, [O2]i = 0.240 M, [NO]i = 1.20 M,  Kc = 0.050   What is the reaction quotient?   What direction will the reaction shift to?        LEFT or RIGHT?

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