Blowing air with open mouth is an example of

Options

A. isobaric process
B. isochoric process
C. isothermal process
D. adiabatic process

Answer

A

Explanation

Normally, blowing suddenly is an adiabatic process. But as the mouth is open, pressure inside and outside is the same. Therefore blowing air with an open mouth is isobaric, as it is also not gives that it is sudden.