problem_set6 - U , S , G , and C v . 3. For the same...

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10.40 Thermodynamics Fall 2003 P r o b l e m S e t 6 1. Consider a gas mixture of carbon dioxide and nitrogen at 298 K and 5 bar. (a) How would you model this mixture in terms of its enthalpy and entropy? Be sure to specify your reference states when describing your model. (b) Estimate the minimum work required to separate 100 moles of a 40 mole%
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Unformatted text preview: U , S , G , and C v . 3. For the same lattice in number 2., but now with only 2 non-interacting particles, each of which can exist in only two states, such that E 1 = 3 kcal/mol and E 2 = 5 kcal/mol, calculate U , S , G , and C v . (Note that this is a simple model of a two-state equilibrium, such as a protein which can exist in either a folded or unfolded state, in solution.) 4. For 0.5 mol of O 2 at 0.1 atm., and 1000 K, compute U , S , G , and C v . You may treat O 2 as an ideal gas at these T and P conditions. Note that both O 2 and the O atom have a net spin of 1 in their ground states. Also the first excited electronic state of O 2 occurs at a thermal energy of 11,300 K and has a net spin of 1/2. The bond dissociation energy of O 2 , D o , is 117.1 kcal/mol and the thermal vibrational and rotational energies are 2230 K and 2.07 K respectively. Created on December 21, 2004...
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This note was uploaded on 11/27/2011 for the course CHEMICAL E 20.410j taught by Professor Rogerd.kamm during the Spring '03 term at MIT.

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