If gas in a cylinder is maintained at a constant temperature t, the pressure p is related to the volume v by a formula of the form p = ((nrt)/(v-)/( in which a, b, n, and r are constants. find dp/dv.

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excesselectrons is typical. what is the magnitude of the electric forceon a protein with this charge in a 1500 n/c electric field?