She used the ideal gas law, PV = nRT
You can use it in the form PV/T = constant or
V2/V1 = T2/T1 * P1/P2
The temeratures must be absolute (Kelvin)
V2/1000 = 266/288 * 763/420 = 1678 mL
Round it off to 1680
given 1000 mL of helium at 15degrees C and 763mmHg, determine its volume at -6degrees C and 420 mmHg.
my friend said she got 1.68 x 10^3 mL
help, I have no idea how she got it
1 answer