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Question- Assume that most of the electromagnetic energy from the sun is 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 electicity.

Then identify which of the following metals could be used in such a capacity:

• silver (phi) = 7.59 x 10-19 J

• silicon (phi) = 7.24 x 10-19 J

• tungsten (phi) = 7.20 x 10-19 J

• titanium (phi) = 6.94 x 10-19 J

• barium (phi) = 4.29 x 10-19 J

• potassium (phi) = 3.78 x 10-19 J

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Category:- Chemistry
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