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- Consider the following diagram of free energy (G) versus fraction of A reacted in terms of moles for the reaction 2A(g) B(g). Before any A has reacted, PA = 3.0 atm and PB = 0. Determine the sign of G and the value of Kp. for this reaction.arrow_forwardGiven the following data at 25C 2NO(g)N2(g)+O2(g)K=1 10 30 2NO(g)+Br2(g)2NOBr(g)K=8 101 Calculate K for the formation of one mole of NOBr from its elements in the gaseous state.arrow_forwardCalculate the standard free-energy change and the equilibrium constant Kp for the following reaction at 25C. See Appendix C for data. CO(g)+2H2(g)CH3OH(g)arrow_forward
- Elemental boron, in the form of thin fibers, can be made by reducing a boron halide with H2. BCl3(g) + 3/2 H2(g) B(s) + 3HCl(g) Calculate H, S, and G at 25 C for this reaction. Is the reaction predicted to be product favored at equilibrium at 25 C? If so, is it enthalpy driven or entropy driven?arrow_forwardA reaction has K = 1.9 1014 at 25C and K = 9.1 103 at 227C. Predict the signs for G, H and S for this reaction at 25C. Assume H and S do not depend on temperature.arrow_forwardAt 627C, K=0.76 for the reaction 2SO2(g)+O2(g)2SO3(g) Calculate K at 627C for (a) the synthesis of one mole of sulfur trioxide gas. (b) the decomposition of two moles of SO3.arrow_forward
- Titanium(IV) oxide is converted to titanium carbide with carbon at a high temperature. TiO2(s) + 3 C(s) 2 CO(g) + TiC(s) (a) Calculate rG and K at 727 C. (b) Is the reaction product-favored at equilibrium at this temperature? (c) How can the reactant or product concentrations be adjusted for the reaction to proceed at 727 C?arrow_forwardConsider the reaction 2SO2(g)+O2(g)2SO3(g) (a) Calculate G at 25C. (b) If the partial pressures of SO2 and SO3 are kept at 0.400 atm, what partial pressure should O2 have so that the reaction just becomes nonspontaneous (i.e., G=+1.0 k J)?arrow_forwardA crucial reaction for the production of synthetic fuels is the production of H2 by the reaction of coal with steam. The chemical reaction is C(s) + H2O(g) CO(g) + H2(g) (a) Calculate rG for this reaction at 25 C, assuming C(s) is graphite. (b) Calculate Kp for the reaction at 25 C. (c) Is the reaction predicted to be product-favored at equilibrium at 25 C? If not, at what temperature will it become so?arrow_forward
- Calculate rG for the decomposition of sulfur trioxide to sulfur dioxide and oxygen. 2 SO3(g) 2 SO2(g) + O2(g) (a) Is the reaction product-favored at equilibrium at 25 C? (b) If the reaction is not product-favored at 25 C, is there a temperature at which it will become so? Estimate this temperature. (c) Estimate the equilibrium constant for the reaction at 1500 C.arrow_forwardThe standard free energy change, rG, for the formation of NO(g) from its elements is + 86.58 kJ/mol-rxn at 25 C. Calculate Kp at this temperature for the equilibrium N2(g) + O2(g) NO(g) Comment on the sign of rG and the magnitude of Kp.arrow_forwardGiven the following data at a certain temperature, 2N2(g)+O2(g)2N2O(g)K=1.2 10 35 N2O4(g)2NO2(g)K=4.6 10 3 12 N2(g)+O2(g)NO2(g)K=4.1 10 9 calculate K for the reaction between one mole of dinitrogen oxide gas and oxygen gas to give dinitrogen tetroxide gas.arrow_forward
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