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8. Use the data in the appendix to calculate the standard entropy change, ASo, for the...
2.A certain compound undergoes a solid + liquid phase transition at -25.5°C. The entropy change AS, associated with the phase transition at this temperature is 53.8 J mor' K". What is the amount of heat energy. 9, that is absorbed to give this value for AS? (8 points) 8. Use the data in the appendix to calculate the standard entropy change, ASo, for the combustion of 1 mole of methane, CHe() (note: all reactants and products are in the gaseous...
answer 13 and 14 please 12. The space shuttle uses the combustion of hydrogen with oxygen to power the main rockets. Use the data in the appendix to calculate the standard entropy change, Aso, for the combustion of 1 mole of hydrogen (note: all reactants and products are in the gaseous state). Be sure to provide the balanced equation for the combustion. (10 points). 13. When an ionic solid (like NaCl) dissolves in water the molecules of water separate, surround...
12. The space shuttle uses the combustion of hydrogen with oxygen to power the main rockets. Use the data in the appendix to calculate the standard entropy change, Aso, for the combustion of 1 mole of hydrogen (note: all reactants and products are in the gaseous state). Be sure to provide the balanced equation for the combustion. (10 points). 13. When an ionic solid (like NaCl) dissolves in water the molecules of water separate, surround and disperse the Nat and...
What is the standard heat of reaction (AHO) for the combustion reaction of CH4(9)? Calculate the difference, AH-AE=A(PV) for the combustion reaction of 1 mole of methane. (Assume standard state conditions and 298 K for all reactants and products.)
3. Calculate the standard enthalpy change (AHº) for the combustion of methane given the following data: AH° = -232.4 kJ CH4(g) + O2(g) → CH2O(g) + H20 (g) CH20 (g) + O2(g) → CO2(g) + H2O(g) AH° = -343.5 kJ 3. Calculate the standard enthalpy change (AHº) for the combustion of methane given the following data: AH° = -232.4 kJ CH4(g) + O2(g) → CH2O(g) + H20 (g) CH20 (g) + O2(g) → CO2(g) + H2O(g) AH° = -343.5 kJ...
You can make predictions about entropy of shown below ) ?? and AS by com paring the relative enthalpy and the products and reactants. For example, consider the combustion of hydrogen, 2 H2(g)+ O2(3) 2 1120O Do you expect an increase or decrease in entropy for this reaction? a. Use Standard Thermodynamic Properties (an Appendix in yo calculate AS for this reaction, where ASo S(produ ur textbook) to cts)-?S(reactants) b.
Calculate the standard free energy change for the combustion of one mole of methane using the values for standard free energies of formation of the products and reactants. The sign of the standard free energy change allows chemists to predict if the reaction is spontaneous or not under standard conditions and whether it is product-favored or reactant-favored at equilibrium. kJ/ mol-rxn
8. Calculate the standard entropy change (AS) for the reaction below. Use the table on page 344 of your textbook for positional entropy, S' values. (10 points) Si () + O2(g) → SiO, ()
Absolute Entropy Sº, in moll K1 3. Use the following table and rxn to answer the questions. Standard Heat of Substance Formation, AH, in kJ moli C(s) 0.00 CO2(g) -393.5 H2(g) H2O(1) -285.85 O2(g) 0.00 C3H2COOH(1) 0.00 5.69 213.6 130.6 69.96 205.0 226.3 The enthalpy change for the combustion of butyric acid at 25°C, AH"comb, is-2,183.5 kilojoules per mole. C3H7COOH(1) + 5O2(g) = 4CO2(g) + 4H20(1) a) From the data above, calculate the standard heat of formation, AH,, for butyric...
Consider the reaction HCl(g)NH3(g)>NH4C1(s) Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 2.45 moles of HCl(g) react at standard conditions. ASO surroundings J/K Consider the reaction HCl(g)NH3(g)>NH4C1(s) Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 2.45 moles of HCl(g) react at standard conditions. ASO surroundings J/K