Lab report: Thermal Energy Transfer

1. What is the purpose of the lab?

Theoretically, which metal should be the most reactive? hydrogen lithium francium fluorine

Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?