$1.(+9)$ Please examine the following dislocation reactions and explain if they are possible and

why or why not. Consider Burgers vectors, reaction energy, and dislocation slip plane in your

analysis.

b$.\frac{a}{2}[\frac{?}{\text{b}\text{a}\text{r}}(111)]\frac{a}{8}[\frac{?}{\text{b}\text{a}\text{r}}(110)]+\frac{a}{4}[\frac{?}{\text{b}\text{a}\text{r}}(112)]+\frac{a}{8}[\frac{?}{\text{b}\text{a}\text{r}}(110)]$ all on $(\frac{?}{\text{b}\text{a}\text{r}}(110))$