Which is an example of pseudoscience? use of X-rays to observe the bones of the arm
use of DNA analysis to determine paternity
use of vaccines to prevent the occurrence of disease
use of astrology to predict the personality of a child

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

what is the question here. i think you messed up.