I. Compute the ratio of the Zero point energy for the diatomic deuterium and tritium substituted compound XD and XT Ii. From this and the C-H stretching frequency of 3000 cm-1, compute the C-D and C-T stretching frequency.
iii. What is the Zero point difference bin kJ
iv. Predict the value of kH/kT at 300k?
v. What is the ratio of kD/kT?

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)

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

The biosphere of the earth is made up of what compound? organic or inorganic?