1.Calculate the free energy(ΔG°)of the following reactions: a)H2(g) + O2(g)→ H2O2(g) b)H2O2(g) + H2(g) → 2...
1.Calculate the free energy(ΔG°)of the following
reactions:
a)H2(g) + O2(g)→ H2O2(g)
b)H2O2(g) + H2(g) → 2 H2O (g)
How do the free energy values for these two reactions compare to
the free energy of the combustion of hydrogen gas? Hint: (ΔG) is a
state function, therefore Hess’s law is applicable.The combustion
of hydrogen gas is modeled by the overall equation is 2 H2(g) +
O2(g)→ 2 H2O(g).
2.Based on your calculations in the previous question and your understanding of reaction mechanisms, draw a qualitative energy diagram of the reaction’s progress.Remember to properly label the axes. Make sure you include the formulas of the reactants, intermediate(s)and products and their correct relative positions energy-wise. You can draw the diagram on a separate sheet of paper
3.Why is the test tube with the DI water used as a comparison in this experiment? Explain.
4.Why might the reaction between hydrogen peroxide and MnO4-proceed more slowly towards the end of the reaction?
These question are from Detecting a Reaction Intermediate lab. Please, help me to answer them or some of them :)
Homework Answers
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1.Calculate the free energy(ΔG°)of the following
reactions:
a)H2(g) + O2(g)→ H2O2(g)
b)H2O2(g) + H2(g) → 2...
3.Calculate the free energy(ΔG°)of the following reactions:(10 pts)a)H2(g) + O2(g)→ H2O2(g)b)H2O2(g) + H2(g) → 2 H2O...
3.Calculate the free energy(ΔG°)of the following reactions:(10 pts)a)H2(g) + O2(g)→ H2O2(g)b)H2O2(g) + H2(g) → 2 H2O (g) How do the free energy values for these two reactions compare to the free energy of the combustion of hydrogen gas? Hint: (ΔG) is a state function, therefore Hess’s law is applicable.The combustion of hydrogen gas is modeled by the overall equation is 2 H2(g) + O2(g)→ 2 H2O(g). I have no idea how to calculate the free energy, can you please explain...
Calculate Gibbs free energy for this reaction (in kJ): 2 H2O2(l) → 2 H2O(l) + O2(g)...
Calculate Gibbs free energy for this reaction (in kJ): 2 H2O2(l) → 2 H2O(l) + O2(g) what is the answer?
Consider the following gas reaction at STP: H2(g) +O2(g) -->H2O2(g). Calculate the final volume if 2.0...
Consider the following gas reaction at STP: H2(g) +O2(g) -->H2O2(g). Calculate the final volume if 2.0 moles of hydrogen gas react with 2.0 moles of oxygen gas. (R=0.08206 L*atm/mol*K)
1) The enthalpy of formation for H2O(l) is given by H2(g) + 1/2 O2(g) → H2O(l)....
1) The enthalpy of formation for H2O(l) is given by H2(g) + 1/2 O2(g) → H2O(l). Add this reaction to H2O(l) + 1/2 O2(g) → H2O2(aq). This is the reverse of the decomposition reaction from this experiment. Show the sum of the above two reactions is the enthalpy of formation of H2O2(aq) 2) Calculate the literature value for the enthalpy of decomposition of H2O2(aq) from the enthalpies of formation of H2O2(aq), H2O(l) and O2(g) found in your textbook or any...
Calculate the standard free-energy change, ΔG°, for the synthesis of hydrogen chloride gas, HCl, from hydrogen...
Calculate the standard free-energy change, ΔG°, for the synthesis of hydrogen chloride gas, HCl, from hydrogen and chlorine gases at 25 °C. ΔG∘f for H2 (g) = 0 kJ; ΔG∘f for Cl2 (g) = 0 kJ; ΔG∘f for HCl (g) = −95.3 kJ. H2(g) + Cl2(g) → 2 HCl(g)
Hydrogen peroxide (H2O2) decomposes to produce water and oxygen according to the following reaction: 2 H2O2...
Hydrogen peroxide (H2O2) decomposes to produce water and oxygen according to the following reaction: 2 H2O2 (l) -----------> 2 H2O (l) + O2 (g) Which relationship regarding the quantities of reactants and products associated with this reaction is NOT correct? Group of answer choices 2 molecules of H2O2 -----------------> 2 molecules of H2O + 1 molecule of O2 2 mol of H2O2 ----------------->2 mol of H2O + 1 mol of O2 68.0 g of H2O2 -----------------> 36.0 g of H2O...
2. Determine the values of E°cell and ΔG° for the following reactions. (a) O2(g) + 4...
2. Determine the values of E°cell and ΔG° for the following reactions. (a) O2(g) + 4 I–(aq) + 4 H+(aq) → 2 H2O(l) + 2 I2(s) E°cell _________ ΔG°__________ (b) 4 IO3–(aq) + 4 H+(aq) → 2 I2(s) + 2 H2O(l) + 5 O2(g) E°cell _________ ΔG°_________
5. Hydrogen gas reacts with oxygen to form water. 2 H2(g) + O2(g) → 2 H2O(g),...
5. Hydrogen gas reacts with oxygen to form water. 2 H2(g) + O2(g) → 2 H2O(g), AH=-483.5kJ Determine the mass of oxygen and hydrogen needed to produce 483 J of heat without leaving any reactant. [0.5] 6. Use standard enthalpies of formation from Appendix II.B from at the end of the textbook to determine AHºrxn for the combustion reaction of hexane (C6H14). [0.5]
Given that the reaction 2 H2(g) O2(g)2 H20(g) is exothermic, which of the following is true...
Given that the reaction 2 H2(g) O2(g)2 H20(g) is exothermic, which of the following is true of the reaction 2 H2O(g) 2 H2(g) + O2(g) ? Its activation energy is greater than that of 2 H2(g) +O2(g) 2 H2O(g) Its activation energy is lower than that of 2 H2(g)+ O2(g) 2 H2O(g There is no relationship between its activation energy and that of 2 H2(g) + O2(g )-+ 2 H20(g) ts activation energy is the same as that of 2...
The gas phase decomposition of hydrogen peroxide at 400 °C H2O2(g)—>H2O(g) + 42 O2(g) is second...
The gas phase decomposition of hydrogen peroxide at 400 °C H2O2(g)—>H2O(g) + 42 O2(g) is second order in H2O2. In one experiment, when the initial concentration of 1,02 was 0.153 M, the concentration of H2O2 dropped to 2.51x10-2 M after 36.1 seconds had passed. Based on these data, the rate constant for the reaction is M's-1 The gas phase decomposition of nitrogen dioxide at 383 °C NO2(g)—>NO(g) + 12 02(g) is second order in NO, with a rate constant of...
5. Hydrogen gas reacts with oxygen to form water. 2 H2(g) + O2(g) → 2 H2O(g), AH=-483.5kJ Determine the mass of oxygen and hydrogen needed to produce 483 J of heat without leaving any reactant. [0.5] 6. Use standard enthalpies of formation from Appendix II.B from at the end of the textbook to determine AHºrxn for the combustion reaction of hexane (C6H14). [0.5]
Given that the reaction 2 H2(g) O2(g)2 H20(g) is exothermic, which of the following is true of the reaction 2 H2O(g) 2 H2(g) + O2(g) ? Its activation energy is greater than that of 2 H2(g) +O2(g) 2 H2O(g) Its activation energy is lower than that of 2 H2(g)+ O2(g) 2 H2O(g There is no relationship between its activation energy and that of 2 H2(g) + O2(g )-+ 2 H20(g) ts activation energy is the same as that of 2...
The gas phase decomposition of hydrogen peroxide at 400 °C H2O2(g)—>H2O(g) + 42 O2(g) is second order in H2O2. In one experiment, when the initial concentration of 1,02 was 0.153 M, the concentration of H2O2 dropped to 2.51x10-2 M after 36.1 seconds had passed. Based on these data, the rate constant for the reaction is M's-1 The gas phase decomposition of nitrogen dioxide at 383 °C NO2(g)—>NO(g) + 12 02(g) is second order in NO, with a rate constant of...
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