A sample of gas occupies a volume of 685 mL at 1.21 atm and 95 oC. Calculate the pressure of the gas if its volume is changed to 891 mL while its temperature is held constant. a) The pressure is 0.00253 atm. b) The pressure is 0.00428 atm. c) The pressure is 0.635 atm. d) The pressure is 1.57 atm. e) The pressure is 0.930 atm.