Problem 2 The chemical reaction for photosynthesis is represented by the following unbalanced equation: CO2 + H₂O + hv→ C6H12O6+ O2 a) Balance the equation. b) If the reaction requires an input of energy (sunlight) to proceed, is the reaction endothermic or exothermic? c) Calculate the heat of reaction AH to see how much energy is required, given the standard enthalpy for glucose C6H12O6 is -1273.3 kJ/mol. Answer: 2,803 kJ/mol d) If an average tree produces 260 lbs. of oxygen per year, how many kilograms of carbon dioxide does it take up? Answer: 162.2 kg CO₂ e) What wavelength is necessary to drive this reaction if it takes one photon to dissociate one molecule? Answer: 0.0425 µm

Problem 2 The chemical reaction for photosynthesis is represented by the following unbalanced equation: CO2 + H₂O + hv→ C6H12O6+ O2 a) Balance the equation. b) If the reaction requires an input of energy (sunlight) to proceed, is the reaction endothermic or exothermic? c) Calculate the heat of reaction AH to see how much energy is required, given the standard enthalpy for glucose C6H12O6 is -1273.3 kJ/mol. Answer: 2,803 kJ/mol d) If an average tree produces 260 lbs. of oxygen per year, how many kilograms of carbon dioxide does it take up? Answer: 162.2 kg CO₂ e) What wavelength is necessary to drive this reaction if it takes one photon to dissociate one molecule? Answer: 0.0425 µm

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions

Section5.8: Product- Or Reactant-favored Reactions And Thermodynamics

Problem 1.2ACP

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