The sun supplies energy at a rate of about 1.0 kilowatt per square meter of surface area (1 watt = 1 J/s). The plants in an agricultural field produce the equivalent of 20. kg of sucrose (C12H22O11) per hour per hectare (1 ha = the reaction 10,000 m²). Assuming that sucrose is produced by 12CO2 (g) + 11H20(1) · → C12 H22 O11 (s) + 1202(g) AH = 5640 kJ calculate the percentage of sunlight used to produce the sucrose – that is, determine the efficiency of photosynthesis in this field. Percent efficiency =

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Chapter1: Chemical Foundations
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The sun supplies energy at a rate of about 1.0 kilowatt per square meter of surface area (1 watt = 1 J/s). The plants in an agricultural field produce the equivalent of 20. kg of sucrose (C₁₂H₂₂O₁₁) per hour per hectare (1 ha = 10,000 m²). Assuming that sucrose is produced by the reaction

\[ 12\text{CO}_2(g) + 11\text{H}_2\text{O}(l) \rightarrow \text{C}_{12}\text{H}_{22}\text{O}_{11}(s) + 12\text{O}_2(g) \quad \Delta H = 5640 \text{ kJ} \]

Calculate the percentage of sunlight used to produce the sucrose – that is, determine the efficiency of photosynthesis in this field.

Percent efficiency = [ ] %

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Transcribed Image Text:The sun supplies energy at a rate of about 1.0 kilowatt per square meter of surface area (1 watt = 1 J/s). The plants in an agricultural field produce the equivalent of 20. kg of sucrose (C₁₂H₂₂O₁₁) per hour per hectare (1 ha = 10,000 m²). Assuming that sucrose is produced by the reaction \[ 12\text{CO}_2(g) + 11\text{H}_2\text{O}(l) \rightarrow \text{C}_{12}\text{H}_{22}\text{O}_{11}(s) + 12\text{O}_2(g) \quad \Delta H = 5640 \text{ kJ} \] Calculate the percentage of sunlight used to produce the sucrose – that is, determine the efficiency of photosynthesis in this field. Percent efficiency = [ ] % The text includes two interactive buttons labeled "Submit Answer" and "Try Another Version," with a note at the bottom indicating "3 item attempts remaining."
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