A certain sample of gas has a volume of 20.0 dm3
at 0oC and 1.0 atm. A plot of the
experimental data of its volume against the celcius temperature, Ɵ, at constant pressure, gives
a straight line of slope 0.074 dm3
/
oC. From these data alone (without use of the perfect gas
law) determine the absolute zero of temperature in degrees Celsius?
Answers
hi!
a) A certain sample of gas has a volume of 20.0 dm3 at 0oC and 1.0 atm. A plot of the experimental data of its volume against the celcius temperature, Ɵ, at constant pressure, gives a straight line of slope 0.074 dm3 /o From these data alone (without use of the perfect gas law) determine the absolute zero of temperature in degrees Celsius?
b) Ballons are still used to deploy sensors that monitor meteorological phenomena. It is possible to investigate some of the technicalities of ballooning by using perfect gas law. Suppose your balloon has a radius of 3.0 m and that is spherical.
What mass of H2 (in mol) is needed to inflate it to 1.0 atm in an ambient temperature of 25oC at sea level?
What mass can the balloon lift at sea level,where the density of air is 1.22 kg /m3?
What would be the payload if He were used instead of H2?