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Assume that most of the electromagnetic energy from the sun is in the visible region near 500 nm.  Calculate the maximum value of the work function for a metal to be used in photovoltaic cells to convert solar energy into electricity.  Then identify which of the following metals could be used in such a capacity:    tungsten (Φ = 7.20 × 10–19 J) potassium (Φ = 3.78 × 10–19 J) silver (Φ = 7.59 × 10–19 J) silicon (Φ = 7.24 × 10–19 J) barium (Φ = 4.29 × 10–19 J) titanium (Φ = 6.94 × 10–19 J)

Assume that most of the electromagnetic energy from the sun is in the visible region near 500 nm.  Calculate the maximum value of the work function for a metal to be used in photovoltaic cells to convert solar energy into electricity.  Then identify which of the following metals could be used in such a capacity:    tungsten (Φ = 7.20 × 10–19 J) potassium (Φ = 3.78 × 10–19 J) silver (Φ = 7.59 × 10–19 J) silicon (Φ = 7.24 × 10–19 J) barium (Φ = 4.29 × 10–19 J) titanium (Φ = 6.94 × 10–19 J)

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter4: Energy And Chemical Reactions
Section4.11: Fuels For Society And Our Bodies
Problem 4.20E
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Assume that most of the electromagnetic energy from the sun is in the visible region near 500 nm.  Calculate the maximum value of the work function for a metal to be used in photovoltaic cells to convert solar energy into electricity.  Then identify which of the following metals could be used in such a capacity: 

 

tungsten (Φ = 7.20 × 10–19 J)

potassium (Φ = 3.78 × 10–19 J)

silver (Φ = 7.59 × 10–19 J)

silicon (Φ = 7.24 × 10–19 J)

barium (Φ = 4.29 × 10–19 J)

titanium (Φ = 6.94 × 10–19 J)

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