mariahrpoulin mariahrpoulin 17-02-2017 Chemistry contestada A sealed balloon is filled with 2.20 liters of helium gas at 20.0Β° C. If the pressure does not change, what is the temperature when the balloon expands to a volume of 2.60 liters? 16.9Β° C 23.6Β° C 25.1Β° C 73.3Β° C