An ideal gas is taken from the same initial pressure `P_(1)` to the same final pressure `P_(2)` by three different processes. If it is known that point 1 corresponds to a reversible adiabatic and point 2 corrresponds to a single stage adiabatic then:
A. Point 3 may be a two stage adiabatic
B. The average K.E. of the gas is maximum at point 1
C. Work done by surrounding in reachingpoint number 3 will be maximum
D. If point 3 and point 4 lie along an isotherm, then `W_(4-3) gt W_(4-2) gt W_(4-1)`.
