A heat lamp produces 32.8 watts of power at a wavelength

Chapter 7, Problem 44E

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QUESTION:

A heat lamp produces 32.8 watts of power at a wavelength of 6.5 m. How many photons are emitted per second? (1 watt = 1 J/s)

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QUESTION:

A heat lamp produces 32.8 watts of power at a wavelength of 6.5 m. How many photons are emitted per second? (1 watt = 1 J/s)

ANSWER:

SolutionStep1a)As we move from left to right in the periodic table, ionization energy increases(This isbeacause of the decrease in size of atoms).Since Ba comes to the left of Tl in the periodic tableBa has a lower ionization energy than Tl.

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