10. Use the following information to determine the enthalpy for the reaction shown below CH_g) +...
3. Use the thermochemical equations shown below to determine the enthalpy for the reaction for CH3COOH()2C(s) +2H2(g) + O2(g) 2CO2(g)+ 2H2OI)CH3COOH(l) + 202(B) AH 3484 kJ C(s)+ O2(g)CO2(g) AH= -1576 kJ AH= -2288 kJ 2H2O(I) 2H2(g)+ O2(g)
10) Shown below is a reaction energy diagram. Answer the questions below using this diagram. Products NRG Reactants a) ( Reaction Pathway Is this reaction exothermic or endothermic? Draw on the diagram how Activation Energy (E) is measured. Draw on the diagram how the Enthalpy (AH) is measured. b) ( c) C
The potential energy surface is shown below: Ea , reactants energy AH products reaction coordinate Is the reaction Endothermic or Exothermic?
Methanol is combusted to provide heat. The reaction and the enthalpy for the reaction are shown below. CH3OH(l)+1.5O2(g)→CO2(g)+2H2O(l)ΔH=−715kJ Below is a list of sentences that describe a chemical reaction. Choose all of the sentences that apply to the above reaction. Check all that apply. View Available Hint(s) Check all that apply. The enthalpy for 2CH3OH(g)+3O2(g)→2CO2(g)+4H2O(l) is −715 kJ The enthalpy for 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(l) is 715 kJ This process is endothermic. The enthalpy for 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(l) is −1,430 kJ This chemical reaction transfers...
to 14. (20 points) Use the following information to Show your work. e the following information to determine the enthalpy for the reaction shown below. CH(g) + H2O(g) → CO(g) + 3H-(8) AH = ? 2C(s) + 2H2O(g) CH.(g) + CO:(8) All = 15.3 kJ C(s) + H2O(g) → CO(g) +H;(8) AH = 131.3 kJ CO(g) + H2O(g) + CO2(g) + H:(g) AH -41.2 kJ 15. (15 points) Ethanol is being promoted as renewable biofuel. Use the standard enthalpies of...
16. Use the thermochemical equations below to determine the enthalpy change for the following reaction (10 pts.): C(s) + O2(g) → CO2 (g) AH = -234 kJ sko (s) + CO2 (g) → SCO: (s) AH = +1184 kJ 2S60 (s) → 25r (s) + O2 (g) AH = +2440 kJ 2STCO3 (s) + 2Sr (s) + 2C (s) + 302 (9)
OTHERMOCHEMISTRY Calculating the heat of reaction from molar reaction enthalpy and the mass of a reactar A chemist measures the energy change AH during the following reaction: 2 HgO(s) → 2 Hg(1+0 (9) AH=182. kJ Use the information to answer the following questions. This reaction is... endothermic. exothermic. Yes, absorbed. Yes, released. No. Tx ? Suppose 64.0 g of HgO react. Will any heat be released or absorbed? If you said heat will be released or absorbed in the second...
Model 1 - Potential Energy Diagrams 1) The energy (enthalpy) change of a reaction can be determined by the following expression: Activated Complex Transition State AH = Energy products - Energy reactants Activation Energy, E Reactants Consider the energy change for the reaction in Model 1 (the graph to the left). Potential Energy (kJ/mol) Energy change (AH) Products a) The energy change shown is (positive/negative). b) This reaction is (endothermic / exothermic). c) These (reactants / transition state) has more...
1a. Using bond dissociation energies, calculate the heat of reaction (ΔH) for the reaction shown below. Show all your work and provide a reference for where you got your bond dissociation energy values. 1b. Is this reaction endothermic or exothermic? Explain. Provide energy diagrams showing the two processes. Circle the one that corresponds to this reaction. Label the axis appropriately as well as the activation energy (Ea). la. Using bond dissociation energies, calculate the heat of reaction (AH) for the...
2. Use the thermochemical equations shown below to determine the enthalpy for the reaction: (5 marks) C3H8(0) + 5O2(g) →3CO2 + 4 H2O) CO2 +Cgraphite) + O2 AH° = 221.6KJ H2(g) + 1/2O2(g) +H2O AH = -160.3KJ 3 C(graphite) + 4H2(g) →C3H8(9) AH = -58.5KJ 3. Use the thermochemical equations shown below to determine the enthalpy for the reaction: (5 marks) SO2(g) →S(8) + O2(9) H2S(g) + 3/202(g) → H2SO3(1) H2SO3(1)→ H2O +SO2(g) H2S(9)+ 1/2O2(0)+S(8) + H2O) AH = -306KJ...