For the isomerization reaction:
butane ⇌ isobutane kp equals 25 at 500°c. if the initial pressures of butane and isobutane are 5 atm and 0 atm, respectively, what are the pressures of the two gases at equilibrium?

where’s the list ? the question is incomplete

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.