posted by Dani .
a helium balloon is partially filled with 28.7 L of gas at 25.0 degress celcius and a pressure of 1 atm. if the balloon is released and it floats up intp the atmosphere to a heightwhere the pressure is 2.8 x 10^-3 atm and the temperature is -24.0 degrees celcius, calculate the new volume ofthe balloon
First, note the correct spelling of celsius.
Use (P1V1/T1) = (P2V2/T2)
Don't forget that T must be in kelvin.