Question

Determine the maximum weight that may be supported by a hot air balloon of 10 m diameter at a location where the air temperature is 20° c while the hot air temperature is 80°

c. the pressure at the location is 0.8 bar. r = 287 j/kg. k.

Answer 1

change in temp is 80-20=60
pv=nrt
.8×v=287×60
V=287×60/.8=21,525