3A. for adiabatic the chang in U = negative of work done.........
in the other 1 dU is same but work done is more as u can see area under graph is more along circle ............. thus A is positive
B. W is evidently negative ,,,,,,,,,,,,,, and temp at B is same as A so dU is negative so B<0
(NEGATIVE)
C. W<0 and since P,V decreases dT<0 so dU<0 and thus Q<0
(NEGATIVE)
3SORRY C ko edit kar diya ........... didnt read question properly thought its from A TO D .......
still remains negative though............
only A req. sum analysis others are straight forward..............
3see post #2 every thing is there ....telme if u didnt understand.........
21But,
Adiabtaic Expansion ==> "-ve Work" doesnt it??
Can u pl. expand a lil on process in (1)
3no yaar its just the area under the graph ......... and since its expandin its positive ... pls tellme more specifically wat u didnt understand???
21OH SORRY!!!
ya this was in Physics, is liye expansion is "+ve" ab samjh mein aaya!!!
k kkk...
