Answer:
Option A,C,D
Explanation:
(a) Since, change of state (p1,V1,T1) to (p2,V2,T2) is isothermal therefore T1=T2
(b) Since, change of state (p1,V1,T1) to (p3,V3,T3) is an adiabatic expansion it brings about cooling of gas , therefore T3<T1
(c) Work-done is the area under the curve of p-V diagram' As obvious from the given diagram, magnitude
of area under the isothermal curve adiabatic curve , hence
wisothermal > Wadiabatic
Note: Here only magnitudes of work is being considered otherwise both works have negative sign.
(d)△U=nCv△T
In isothermal Process, △U=0, as △T=0 in adiabatic process
△U=nCv (T3−T1)<0 as T3<T1
⇒ △Uisothermal > △Uadiabatic