Interpretation:
The equilibrium constant for the reaction at temperature
Concept introduction:
The energy available with the system thatis utilized in doing useful work is called Gibbs free energy.
Entropy is the direct measurement of randomness or disorderness. Entropy is an extensive property. Entropy is a state function.
The enthalpy of a system is defined as the sum of the internal energy and the product of the pressure and the volume. Enthalpy is a state function and also an extensive property.
The solubility product of the sparingly soluble salt is given as the product of the concentrations of the ions raised to the power equal to the number of times the ion occurs in the equation after the dissociation of the electrolyte.
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CHEMISTRY(LOOSELEAF W/CODE)- CUSTOM
- At 800C, K=2.2104 for the following reaction 2H2S(g)2H2(g)+S2(g) Calculate K at 8000C for (a) the synthesis of one mole of H2S from H2 and S2 gases. (b) the decomposition of one mole of H2S gas.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_forwardUse data given in Tables 6.2 and 18.1 to obtain the value of Kp at 1000C for the reaction C(graphite)+CO2(g)2CO(g) Carbon monoxide is known to form during combustion of carbon at high temperatures. Do the data agree with this? Explain.arrow_forward
- A 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_forwardUse data given in Tables 6.2 and 18.1 to obtain the value of Kp at 2000C for the reaction N2(g)+O2(g)2NO(g) Nitric oxide is known to form in hot flames in air, which is a mixture of N2 and O2. It is present in auto exhaust from this reaction. Are the data in agreement with this result? Explain.arrow_forwardConsider 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_forward
- Which contains greater entropy, a quantity of frozen benzene or the same quantity of liquid benzene at the same temperature? Explain in terms of the dispersal of energy in the substance.arrow_forwardExplain how the entropy of the universe increases when an aluminum metal can is made from aluminum ore. Thefirst step is to extract the ore, which is primarily a formof A12O3, from the ground. After it is purified by freeingit from oxides of silicon and iron, aluminum oxide ischanged to the metal by an input of electrical energy. 2Al2O3(s)electricalenergy4Al(s)+3O2(g)arrow_forwardElemental 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_forward
- Hydrogen gas and iodine gas react to form hydrogen iodide. If 0.500 mol H2 and 1.00 mol I2 are placed in a closed 10.0-L vessel, what is the mole fraction of HI in the mixture when equilibrium is reached at 205C? Use data from Appendix C and any reasonable approximations to obtain K.arrow_forwardSilver carbonate, Ag2CO3, is a light yellow compound that decomposes when heated to give silver oxide and carbon dioxide: Ag2CO3(s)Ag2O(s)+CO2(g) A researcher measured the partial pressure of carbon dioxide over a sample of silver carbonate at 220C and found that it was 1.37 atm. Calculate the partial pressure of carbon dioxide at 25C. The standard enthalpies of formation of silver carbonate and silver oxide at 25C are 505.9 kJ/mol and 31.05 kJ/mol, respectively. Make any reasonable assumptions in your calculations. State the assumptions that you make, and note why you think they are reasonable.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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