9. How might physicists have come to know that at a constant temperature and constant mass, the pressure of an ideal gas is inversely proportional to its volume? gas as (b) (a) They could have conducted an experiment maintaining the described above and made a pressure-versus-volume graph. They could have derived this relationship using the equations describ- ing the ideal gas model and the relationship between the speed of the particles and the gas temperature. Both a and b are correct.

9. How might physicists have come to know that at a constant temperature and constant mass, the pressure of an ideal gas is inversely proportional to its volume? gas as (b) (a) They could have conducted an experiment maintaining the described above and made a pressure-versus-volume graph. They could have derived this relationship using the equations describ- ing the ideal gas model and the relationship between the speed of the particles and the gas temperature. Both a and b are correct.