Plz find work done in this question ... (1+ in 2), (b) w= 2 p v, in 2, (d) w=- p, v, in

SWETA Please ask if you don't follow anything

yahh I have already solve this ..just want to confirm

just tell me mam that why water expands on freezing ...

ice has cage like structure. That's why it occupy more volume Sweta

It requires more volume to freeze Sweta

thanku mam☺️

please mark thankyou 🙏 Sweta

mam u were the topper of 2019 jam

Yes Sweta.

wow mam it's really great

I got AIR 13 Sweta. I was not topper

please accept the answer 🙏 Sweta

please accept the answer if you got it 🙏🙏

for better understanding check this video

got shweta...any doubt then ask??

A to B and C to D isobaric process and B to C isothermal process given..so you know formula of work done in both the process...calculate total work done by adding all of these...

sir minus sign is also here

yes shweta it takes negative sign👍

image is just to explain the concept ..you did it correct by applying formulae

sir plz explain change in internal energy here

shweta internal enegy is a function of temp..so temp constant internal energy constant

any doubt shweta?

if your doubt is solved, please mark thank you 🙏shweta as your thank u mark makes u more active n conscious😊

ok sir thanku

btw I have solved this question

just want to confirm the answers

yes,i know shweta as you are in revising process so you just want to confirm answers and the process you apply😊👍

yes sir 😇

good morning sir

sir here change in internal is zero for b to c but from a to b its positive because as pressure constant .v is directly related to temperature therefore with increase in temperature internal energy also increases

because internal energy is function of temperature ....

and from.c to d it's negative.....

good morning shweta....yes i have already told internal energy is a function of temperature so...for isothermal it is equal to O

sir

but for a to b and c to d it's is not zero

read above

a to b its positive and c to d it's negative

see

m i saying wrong sir ?

a to b its isobaric therefore volume is directly proportional to Tempe. so if temp. rise inter. enegy should rise

?

see shweta as process is given isothermal from B to C so here is no doubt then come to point A and D you see here PV is constant ,nR is already constant...so Change in T =0..you have told by considering charles law that V is directly proportional to T at constant P...but here in this figure we can do this by combining effect na

sir only b to c is isothermal

yes so here is no problem...i am telling at point A and D

ab dekho

right shweta...