See the attachment and please show all work.© BrainMass Inc. brainmass.com June 4, 2020, 2:08 am ad1c9bdddf
a. This is an irreversible process: Because temperature is brought down to ambient temperature, i.e., heat energy has flown from balloon to surroundings -- Hence it is NOT adiabatic process. To reverse the process (bring back temperature of the balloon), some energy has to be invested (because heat energy flows spontaneously from higher temperature to lower ...
The solution answers multiple questions regarding a balloon filled with hot gas cooling down in temperature due to constant pressure.