The potential energy of a helium dimer, (he2) is given by v=(b/r^13) - (c/r^6).where b= 9.29x10^4 kj angstroms^13 (mol dimer)^-1 and c= 97.7 kj angstroms^6 (mol dimer)^-1.
a)calculate the equilibrium distance between the he atoms. b)calculate the binding energy of the dimer. c)would you expect the dimer to be stable at room temperature (300k)

Which of the following is considered a benefit to using wind energy as a source of power

Adepositional also feature that forms where a stream enters a lake or an ocean is a

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.