What is the approximate cooling observed when nitrogen gas undergoes expansion from an initial 25 atm pressure to 1 atm, if the value of the Joule-Thomson coefficient,
for nitrogen
at 298 K and 1 atm is 0.27 K atm-1

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.