thanks alot my friend
my exam travelled to the next Monday
some thing wrong happened
while I was turning my pages (my chemistry notebook)
I found that my doctor told us that ΔE = Qrev. - w
where Qrev. means Q(reversible)
this made me crazy
my knowledge that (q) here is not necessery to be reversible !!!
can you explain please !
ΔE = Q - w
where heat Q can be due to reversible process or not.
Chemists prefer to use the modern form (this is the recommended form)
ΔE = Q + W
where W = -w
The law ΔE = Q + W is valid for both reversible and irreversible processes.