When taken through \(A B C[\triangle U+\) work \(=\) heat absorbed \(]\)
Heat absorbed \(=\) area under graph \(+\Delta U=8\)
\(\Delta U=8-\frac{10 \times 200}{1000}=6\)
when taken directly to \(C\)
\(W+\Delta U=Q\)
\({\left[\frac{10 \times 200}{1000}+\frac{1}{2} \times \frac{2000}{1000}\right]+6=Q \Rightarrow Q=9 \,J }\)