Perform the following conversions
from the text, we have 1 atm = 760 torr, so
(b) 785 torr to kilopascals
notice that 1 atm = 760 mm Hg = 101325 Pa (back inside cover of the text)
(c) 655 mm Hg to atmospheres
notice that 1 torr = 1 mm Hg, so.....
(d) 1.323 x 105 Pa to atmospheres
note that 1 bar = 105 Pa....