Question

Given that `,`
`A(s) rarr A(l)DeltaH=x`
`A(l) rarr A(g), DeltaH=y`
The heat of sublimation of `A` will be `:`
A. `x -y`
B. `x +y`
C. `x or y`
D. `-(x+y)`

Answer 1

`{:(A(s)rarrA(1), DeltaH =x),(A(l)rarrA(g),DeltaH = y),(ulbar("On addition"A(s)rarrA(g),DeltaH =x+y)):}`